2016 CHEVROLET COLORADO Power Train Problems

Power steering suddenly stops working while driving, making it difficult to steer. Fortunately when this happened today it was at low speeds and on a straight away. Warning light to check power steering went on followed by check Stabilitrak system. I called the dealer and am waiting for a response. The vehicle has not been inspected by manufacturer, police, insurance rep, or other. No warning lamp occurred prior to the power steering failure.

The contact stated the company they work for owns a 2016 Chevrolet Colorado. The contact stated that while driving at various speeds, the transmission would slip intermittently. The vehicle was taken to the dealer who diagnosed the transmission failed. The transmission was replaced. When attempting to start the vehicle it failed to start. They had to jump-start the battery to start the vehicle. The battery was replaced by O'Rileys, a battery specialty shop. Approximately a year later, while another employee was driving at approximately 65 MPH when smoke began coming from underneath the vehicle's hood. The driver pulled over and exited the vehicle. The fire department came and put the fire out. The fire department informed the contact that the cause of the fire was because the battery caught fire. The fire department filed a report. The vehicle was towed and deemed totaled. There were no injuries or need for medical assistance. The contact spoke with the dealer who informed them that the VIN was not included in a recall. The manufacturer was informed of the failure. The approximate failure mileage was 88,000.

Mileage: 88,000

The contact owns a 2016 Chevrolet Colorado. The contact stated that while driving and coming to a complete stop, the vehicle jerked while shifting gear. Additionally, while driving at slow speeds, the transmission was slipping, and the vehicle hesitated while shifting into gear. No warning light was illuminated. The contact stated that the torque converter and other unknown transmission parts had previously been replaced, but the failure recurred. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 142,000.

Mileage: 142,000

What component or system failed or malfunctioned, and is it available for inspection upon request? Transmission, yes How was your safety or the safety of others put at risk? I was going 55mph on an open highway and the transmission downshifted into 2nd gear throwing me forward and dropped me to 35mph with a line of cars behind. I could've been rear-ended, thrown off the road, or rolled if I had not immediately grabbed the shifter and put into manual and manually upshifted it back up. Besides the damages to the engine downshifting at that rate of speed to the wrong gear without notice or warning. Has the problem been reproduced or confirmed by a dealer or independent service center? no not a dealer but it has recreated itself a handful of times. This happens more often on downhill grades. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? yes, Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear?No

On multiple occasions the warning to service Power Steering and Stabilitrak have popped up during driving causing a loss of power steering. Once I was taking a curve and it jerked the truck toward the right but I luckily had a good grip on the steering wheel to keep it on the road. Other occasions it occurs upon starting the vehicle in the morning or after sitting parked for several hours. When this occurs, it is very difficult to keep control of the vehicle when turning is concerned. I have brought it up with service technicians at the dealership but they cannot diagnose unless it is in the state of warning lights on and loss of power steering. The issue usually goes away when vehicle is turned off and restarted, though not always. This issue continues at haphazard intervals so it makes driving tense and unsafe as there is no telling when it will pop up. It is also causing an issue to get fixed because it cannot be replicated to get diagnosed properly. I have not been able to get any codes read for the issue as I am not near a facility when it occurs.

The contact's husband owns a 2016 Chevrolet Colorado. The contact stated while driving at various speeds, the vehicle shuddered while depressing the accelerator pedal. The contact stated that the failure persisted with the check engine warning light illuminated. The vehicle was taken to the dealer on several occasions where the contact was informed that the engine solenoid needed to be replaced. The contact disputed the dealer's diagnosis and took the vehicle to an independent mechanic. The mechanic discovered that the torque converter was defective, and that the transmission needed to be replaced. The manufacturer was notified of the failure and informed the contact that there were no recalls on the vehicle. The contact was then referred to the NHTSA Hotline to file a complaint. The vehicle had not been repaired. The failure mileage was approximately 30,000.

Mileage: 30,000

Transmission shudder at low speeds

Sudden loss of power steering assist while driving. Warning light went off on dash for steering assist and Stabilink traction control system. Truck is very hard to steer when this suddenly happens. This is the third time in a month. 2015 models have a recall for exact same problem but 2016 do not.

Randomly lose power steering and enables stabilitrak.

06/13/2023: Odometer: 86881 Transmission-2nd Shift: Flare, 3rd Shift: rough shift flare, 4th Shift: shutter. Excessive metal particles in the fluid. No transmission codes or engine light detected. Result was a new rebuilt transmission. 11/01/23: Odometer: 90239 Engine Code: P00b7 coolant flow restriction, stuck thermostat. Result was to replace thermostat and flush coolant system. 12/06/23: Odometer: 91701 No codes detected. Fluids noticed on pavement occasionally. Valve cover gasket, vacuum pump gasket were failing. Result was to replace all parts. 02/25/24: Odometer: 92885 Code-engine overheating, idle engine. Critical 260 upon cold start. Failing temperature sensor. Result was to replace front and rear temperature sensor. Driver seat has begun to unravel and separate at the stich line on the side closest to the door. No repairs have been made. Issue began years ago. Approximately 2018. The area was small and has slowly widened. Approximately 6 inches currently even with avoidance of stretching and being cautious of that area. I do have documentation of this events and repairs if they are needed.

The contact owns a 2016 Chevrolet Colorado. The contact stated that while driving at various speeds, the vehicle lost power steering functionality. The failure was intermittent. The contact used excessive force to steer the vehicle. The contact stated that on several occasions the vehicle was restarted, and the vehicle regained power steering functionality however, the failure would recur soon afterwards. The contact found NHTSA ID Number: 10208045 (Steering, Power Train, Electrical System, Exterior Lighting) as well as NHTSA Campaign Number: 21V213000 (Steering) which were related to the failure. The vehicle was taken to the dealer where it was diagnosed that the battery had failed. The battery was replaced. The failure persisted and the vehicle was returned to the dealer, and a recalibration was performed. The vehicle was returned to the dealer a third time to be diagnosed. The contact was informed that the torque sensor needed to be replaced. The vehicle had not been repaired. The manufacturer was made aware of the failure, and it was confirmed that the failure was related to the NHTSA ID Number and the recall however, the VIN was not included. The failure mileage 85,000.

Mileage: 85,000

Had transmission problems for over 2 years with the truck has always shifted hard and weird since I bought the truck repair torque converter mechanic has had to go back in twice still can't get it right everything on this truck has been very difficult to get fixed and repaired everything has to be done more than once it's getting annoying

Reference report #[XXX] The transmission in my 2016 Chevrolet Colorado Z71 Quad Cab short bed is hard shifting, shuddering and pausing. The transmission has been serviced two times by the dealer and two times by me. Servicing means fluid and filter changes. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Stabilitrack system alerts then will cut off power steering. Clicking on the shift module occured resulting the computer to go into limp mode making unsafe to drive when it happens spontaneously as I drive. Took it to a local mechanic and ecu codes came up however the dealership is scheduled this weekend. No warnings. The mechanic was able to see the codes pop as I drove

A known wire chaffing problem for this make/model caused vehicle to loose all transmission power. Doors unlocked and locked on their own while moving the vehicle. Had two young children with me in 100+ degree weather. Truck finally moved in first gear at 20 mph max to get home on the road with other traffic.

My power steering and stablalink keep malfunctioning. My power steering will go out on me while I'm driving!

Power steering and stabilitrak fail while driving randomly. Any speed, any steering angle. NUMEROUS times at highway speed. Loss of power steering completely. Will sometimes reset if truck is turned off, key removed, and turned back on again. Other times it takes a few restarts. This is dangerous and scary and it is identical to the 2015 Colorado/Canyon issue.

Vehicle suddenly loses power steering without warning. The power steering module is connected to the CAN bus which errors everything else on the same network so stabilitrack, traction control, ABS, etc goes out all at the same time. On icy roads, this caused to hit the ditch at very high speed. What I don’t understand is why you only forced a recall on the 2015 MY when the 2016’s use the same exact components and assembly process. Clearly this is still an issue for many 2016 owners!

While my 17 year old son was traveling on the highway at a speed of 55, the truck (2016 Chevy Colorado)suddenly lost its power steering. He was barely able to get off the road, because the steering wheel was so hard to turn. The stabilitrak warning light came on and a warning light about the power steering also came on(while the problem was happening). My son was very concerned, because he said if he had been traveling at that speed around a curve, he could have crashed. This seems very serious to me. I googled this problem, only to find there have been recalls on several 2015 and 2016 models, but my VIN was not one of them.... something is wrong here!!?? I'm scared to let him drive it anymore.

Vehicle shuddering at low speeds. Took to Chevrolet Dealer, and they diagnosed as Torque Converter coming apart. Colorado has 67,953 miles. Per dealer service department, Need to replace Transmission at $6,273.52. If not replaced, Vehicle will freeze up and not be able to shift gears.

Auto stutters in lower gears at lower speeds like transmission is skipping.

Vehicle shift lever, part # 23397472, will not go into mode to allow keys to be removed from ignition. Will only go into the accessory mode which will allow the battery to run down if left this way. Have to restart and move shift lever back and forth multiple times before keys can be removed. This seems to be a continuing problem on Chevy Colorados and GMC Canyons according to various Chevy/GMC owner complaints. Almost have pointed back to the part number above.

The transmission sucks. It’s jerky, rough, and random. Downshifting from 5th to 4th and 2nd to 1st is rough. Stopping the vehicle can be a pain sometimes because it’s like the truck doesn’t want to stop. Acceleration is very poor, I shouldn’t have to go pedal to floor to accelerate 5+mph while at highway speeds. It shudders, chuggles, and creates a weird deep droning noise when getting up too speed While driving, the engine picks and chooses when to speed up. I press the gas peddle down and have to wait a few seconds before the vehicle responds. I have noticed the vehicle making sounds like it is sputtering almost to the point to seizing all together. Slow and go driving 20-40mph after coasting and trying to accelerate again the transmission bucks, hesitates trying to find a lower gear. It can’t decide which gear to go into and just sputters and chugs until I push the accelerator 1/2 way down or more and it the finds its gear and rockets off. This type of driving is not safe at all. This happens all the time. This is a known gm issue with Colorado/Canyons and GM changed transmissions following years and no support for 2015-16. It sucks at maintaining speeds; even with cruise control. I go up the slightest, and I mean like a 2% grade incline it loses its speed by 2-5 mph. And with cruise control it’ll down shift to get back to the set speed but I go nowhere. Then it’ll downshift again to a lower gear and climbs even higher in RPMs to get up to speed and then cruise control will shut off and I’ll have to manually accelerate.

The contact owns a 2016 Chevrolet Colorado. The contact stated that on several occasions, the engine, traction, and stabilitrak warning lights illuminated then the vehicle went into Limp Mode. The vehicle was taken to AutoZone where a diagnostic test indicated that the powertrain system and cylinder #1 had failed. The contact stated while driving downhill, the RPM increased however, the vehicle failed to respond. Additionally, the contact stated that the ABS warning light illuminated and the vehicle went into Limp Mode. The vehicle was towed to the dealer where it was diagnosed that the fuel pipe, fuel rail and fuel injector needed to be replaced. The vehicle was repaired however, the failure recurred. The vehicle was then taken to a different dealer where it was diagnosed that cylinder #1 and the power steering failed and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and the contact was informed that she would receive a loaner vehicle however, the manufacturer was contacted a second time where the contact was denied a loaner vehicle due to a warranty issue. The failure mileage was 138,000.

Mileage: 138,000

The transmission went from 2 wheel drive to 4 wheel drive without me doing a thing. The light came on that the transmission was transmission to 4 wheel drive. Then the traction control lights came on the dash which said they were off. The transmission was very sluggish, I pressed on the gas pedal to see if that would clear it and the transmission didn't engage. When I went to turn of the road my front wheels felt like they were coming off. (Hard to explain) it's like the wheels were turned to tight. And the front end shook. I was stuck.

Has happened multiple times where driving and notification comes on dash that Stabilitrak and Power steering are malfunctioning and then stop working. Has happened in the middle of a turn and the wheel turn to lead in my hand and I almost crashed. Every time it happens the only way to fix it is to pull over and reset computer and pray it doesn't shut off again while I'm driving. I've spoken to numerous others with the same year and have had similar electrical issues, as well I have seen dozens of people posting online asking the same questions so i know its not just my car and I know there is a recall out for the same part on the '15 Chevy Colorado. The issue of bringing it into the mechanic to fix is that if nothing is going wrong at the time they can't see the issue. This is an extreme safety issue. more than once the power steering has shut off while taking a steep turn. GM needs to be help accountable to fix this issue.

my truck has a issue when you are going down a hill it shifts into a lower gear. This is an automatic transmission. This can cause my truck to slide and spin in bad weather. I have seen people comment about this issue on some Colorado forums. It has done this many times and at times I have pulled over and placed it in park

My transmission suddenly failed while I was in drive, stopped, at a stop light. I had the transmission repaired. It was a sealed unit with nothing visible from the outside. I would have had to pay a substantial core charge to keep the failed unit, which I did not do so it was not inspected and is not available to my knowledge. My safety was put at risk because I could not move my vehicle in heavy afternoon rush hour traffic on a busy city street. The police did not respond. A tow truck took 50 minutes to arrive. My vehicle was in a traffic lane. My safety was put at risk because I had to direct on-rushing traffic around my vehicle by the light of my phone flashlight as darkness fell. My truck and I were at risk of being hit for at least twenty minutes before my arriving son and two kind strangers were able to stop traffic and push my vehicle onto private property. The problem was reproduced and confirmed by the certified Chevy technician who repaired my truck. The component was only inspected from the outside by the service tech who could not see any issues on the outside of the sealed transmission. There was no warning. My vehicle was in drive with my foot on the brake as I sat waiting for the light to change. When the light changed, I took my foot off the brake and depressed the accelerator pedal. The engine revved but there was no movement. I changed the gears from drive to park and back again several time with no effect. The reverse gear still worked but that did not help me in traffic.

Electrical issue receiving "Service 4WD" message. Has came on intermittently in the past. This causes the vehicle to get stuck in either 4wd or 2wd. Removing battery terminal and fuse fixes this and it works again fine until the error comes on randomly.

The contact owns a 2016 Chevrolet Colorado. The contact stated that while driving at highway speeds, after switching from the automatic drive mode to manual drive mode, the driver was able to manually switch to 1st gear which caused the speed to abruptly decrease. The contact indicated that the owner’s manual stated that the vehicle would not allow itself to shift into a lower gear at an unsafe speed. The cause of the failure was not determined. The vehicle was taken to the local dealer and the mechanic duplicated the failure, but no service was performed. The manufacturer was not notified of the failure. The failure mileage was 36,000.

Mileage: 36,000

When the vehicle is placed in Park and Ignition is turned off, the Ignition Key cannot be removed one out of eight or ten tries. It is available for inspection. My wife was running an errand after dark. She was unable to remove the Key, but did not want to leave the vehicle to be possibly stolen. This was a serious danger to her and it has also happened to me. Dealers confirm that this is a common problem, but only replace parts at my expense due to being out of warranty. The parts work for several months, then the problem reoccurs. The vehicle has been inspected by a dealer. No warnings prior to failure. Problem began at 41,000 miles.

Poor shifting, engine bogging down going up hills, shudder. I have had vehicle in to at least 3 different Chevy dealerships complaining of shudder, slipping and they claim they can't reproduce. It's getting much worse now. Started around 60k miles

2016chevyz714wd Key gets stuck in the ignition! Over and over! I’ve been to dealer/ no help there! What a nightmare! Can’t remove ignition key in parking lot to go to work! Recall and get a fix! This is a daily problem! [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

2016 colorado SERVICE BULLITEN PI1429 CANT REMOVE KEY FROM IGNITION WHEN PARKING SHIFT LEVER ISNT ENGAGING OR FULLY SEATING. THIS IS POTENTIALLY VERY DANGEROUS IF AN EMERGENCY EVER AROSE OR RESPONDING TO IT...IF YOU CANT REMOVE THE KEY FROM THE IGNITION THAN WHAT IS THE POINT OF EVEN DRIVING THIS TRUCK. THIS NEEDS TO BE RECALLED IM NOT GIVING CHEVY $800 TO FIX YOUR OWN MISTAKE. PAID 30K FOR A TRUCK THAT YOU CANT TAKE THE KEY OUT OF.

TL* THE CONTACT OWNS A 2016 CHEVROLET COLORADO. THE CONTACT STATED THAT WHILE THE VEHICLE WAS STOPPED, THE CONTACT WAS UNABLE TO REMOVE THE KEY FROM THE IGNITION. THE CONTACT STATED THAT AFTER SHIFTING INTO PARK AND WAITING FOR APPROXIMATELY 30 MINUTES SHE COULD REMOVE THE KEY FROM THE IGNITION. SHE ALSO STATED ON SEVERAL OCCASIONS AFTER DRIVING FORWARD AND THEN BACKING UP SEVERAL TIMES THE KEY COULD BE REMOVED. ADDITIONALLY, THE GEAR SHIFTER INDICATOR LIGHT FAILED TO SHOW THE GEAR THAT THE VEHICLE WAS IN. THE VEHICLE HAS NOT BEEN DIAGNOSED NOR REPAIRED. NEITHER THE DEALER NOR THE MANUFACTURER WERE MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 96,000.

Mileage: 96,000

THERE IS A LOUD ROARING NOISE WHEN DRIVING ON HIGHWAY AND CITY STREETS. IT'S LOUDER AT HIGHER SPEEDS.

Mileage: 43,000

TRANSMISSION SHIFTING HARD AND SLIPPING IN GEAR 1 AND 2 ALSO DOWN SHIFTS HARD 2 AND 3 GEAR.

Mileage: 1

TL* THE CONTACT OWNS A 2016 CHEVROLET COLORADO. THE CONTACT STATED THAT WHILE THE VEHICLE WAS IN PARK, THE STEERING WHEEL SEIZED WHILE THE SERVICE POWER STEERING ASSIST WARNING LIGHT ILLUMINATED INTERMITTENTLY. THE CONTACT STATED THAT THE VEHICLE STALLED AND SHUT-OFF WHILE IN PARK. THE CONTACT WAITED FOR APPROXIMATELY TWO MINUTES FOR THE VEHICLE TO RESUME NORMAL OPERATION. JON HALL CHEVROLET (551 N NOVA RD, DAYTONA BEACH, FL 32114, (866) 783-3101) WAS CONTACTED AND THE CONTACT WAS INFORMED THAT THE VIN WAS NOT UNDER RECALL. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 39,980.

Mileage: 39,980

WHEN TRAVELING FORWARD,OR TURNING, AT HIGHWAY SPEEDS BETWEEN 20 MPH AND 40 MPH, THIS VEHICLE SHUDDERS ( 6 SPEED TRANSMISSION)AND ACCELERATION PAUSES UNTIL A LOT OF EXTRA EFFORT IS PLACED ON THE GAS PEDAL.THE TRANSMISSION THEN DOWNSHIFTS WITH A SUDDEN LURCH. THIS LEADS TO A SAFETY HAZARD WHEN INSTANT ACCELERATION IS NEEDED.THIS HAPPENS EVERYDAY AT ANY TIME OF THE DAY AND WHETHER HOT OR COLD.

Mileage: 34,455

VEHICLE SHUDDERS DOES NOT DOWNSHIFT SMOOTHLY JERKS WHEN BACKING UP AT TIMES, VEHICLE JUMPS WHEN TRYING TO SHIFT TO A LOWER GEAR. BROUGHT TO DEALERSHIP, COULDN'T GET THE PROBLEM TO OCCUR, SO NOTHING THEY CAN DO AND DON'T CARE TO, VEHICLE HAS 36,000 MILES

Mileage: 36,000

DRIVING MY 2016 CHEVY COLORADO LT 4X4 DOWN THE HIGHWAY AND ALSO ON 2 LANE ROADS IN GREAT WEATHER CONDITIONS THE SERVICE POWER STEERING AND STABILTRAK LIGHTS CAME ON. ELECTRIC STEERING WAS DISABLED AND I HAD EXTREME DIFFICULTY WITH TURNING LEFT OR RIGHT. THIS IS THE SAME RECALL AS GM 15595. TURNING THE VEHICLE OFF AND ON RESOLVES THE ISSUE TEMPORARILY. NOW IT IS HAPPENING MORE AND MORE AND I DO NOT FEEL SAFE WITH MY FAMILY IN THE VEHICLE.

Mileage: 47,000

WHEN DRIVING IN STOP AND GO TRAFFIC, AND THROUGH CITY AND RESIDENTIAL AREAS, THE TRANSMISSION SEEMS TO STRUGGLE FINDING THE CORRECT GEAR. THE TRANSMISSION HESITATES AND DOES NOT SHIFT AS SMOOTHLY AS IT SHOULD, AND SOMETIMES SHIFTS HARD UPON REACCELERATION, OR SUDDEN BRAKING. THE TRANSMISSION ALSO STRUGGLES TO FIND THE CORRECT GEAR WHILE HIGHWAY DRIVING (70-75 MPH) WITH CONSTANT GRADE CHANGES, AND HILLS. (INTERSTATE 5 FROM LOS ANGELES TO BAKERSFIELD CA. ) WHEN STARTING THE VEHICLE AND PLACING IT IN REVERSE TO BACK UP, THE TRANSMISSION SHUTTERS SLIGHTLY BEFORE ENGAGING PROPERLY. THIS USUALLY HAPPENS ON A SLIGHT GRADE, AS MY STREET AND DRIVEWAY MODERATELY SLOPED. I TOOK THE TRUCK AT THE DEALER FOR AND UNRELATED ISSUE, AND ASK THEM TO CHECK IT. THEY SAID IT WAS "NORMAL". I HAVE READ ABOUT SIMILAR COMPLAINTS ON SEVERAL FORUMS, AND ITS SEEMS TO BE A VERY COMMON COMPLAINT. THIS TRANSMISSION SEEMS TO BE JUNK! THE TIME FRAME FOR THIS COMPLAINT IS FROM 2/1/2019 (22,000 MILES) TO PRESENT. OTHERS HAVE COMPLAINED WITH AS LITTLE AS 4,000 MILES.

Mileage: 23,000

THE TRANSMISSION IS EXTREMELY SLOW TO DOWNSHIFT. AS YOU CONTINUE TO PUSH THE GAS PEDAL, IT WILL FINALLY DOWNSHIFT, SOMETIMES TWO GEARS, AND SUDDENLY ACCELERATE. WHEN ON CRUISE CONTROL, YOU LOOSE ABOUT FOUR MPH BEFORE IT FINALLY DOWNSHIFTS, AGAIN SOMETIMES DOWNSHIFTING TWO GEARS. IN TRAFFIC, THE CAR BEHIND YOU DOESN'T ANTICIPATE THE LOSS OF SPEED AND THEN YOU SUDDENLY ACCELERATE. IT HAPPENS AT ALL SPEEDS, BUT IS PARTICULARLY UNSAFE AT LOW SPEEDS WITH THE SUDDEN ACCELERATION. THIS IS PROBABLY A SOFTWARE PROBLEM AS THE TRANSMISSION SHIFTS MUCH MORE NORMALLY IF YOU PUT IT IN 'TOW/HAUL' MODE. THE DEALER SAYS THIS IS 'NORMAL' AND GM CALLS IT ' TORQUE MANAGEMENT '. IT IS ESPECIALLY UNSAFE IN SLICK CONDITIONS OR RAINY ROADS. BTW, I HAVE A 2017 IMPALA WITH THE SAME SIX SPEED AND V-6, AND IT DOES NOT EXHIBIT THIS RELUCTANCE TO DOWNSHIFT. THANK YOU.

Mileage: 38,250

WHEN I PUT THE VEHICLE IN PARK QUITE OFTEN WHEN I TURN THE KEYS TO THE OFF POSITION THE KEYS DON'T GO ALL THE WAY OFF UNTIL I SHIFT INTO GEAR A FEW TIMES AND BACK INTO PARK. I TOOK IN TO THE DEALER AND THEY SAID THEY CYCLED IT MANY TIMES AND IT WAS FINE I BROUGHT IT HOME AND GUESS WHAT THE SAME THING. IT IS STILL HAPPENING

WHEN PULLING INTO TRAFFIC CIRCLE FROM LOW SPEED, NO THROTTLE RESPONSE. ENGINE DIED OR HAD NO INPUT TO PROPEL VEHICLE. CHANGE OF GEAR SELECTOR HAD NO AFFECT. NOT UNTIL PUSHED TO SIDE OF ROAD, COMPLETELY SHUT OFF AND REMOVE KEY DID ENGINE RESTART OR HAVE ANY RESPONSE TO THROTTLE INPUT.

Mileage: 68,800

THE TRANSMISSION (6SPD AUTOMATIC W/V6 ENGINE) OF THIS VEHICLE IS KNOWN TO HAVE ISSUES THAT WILL SURPRISE YOU IF YOU AREN'T ALREADY AWARE OF THEM. THE ISSUE AFFECTING SAFETY THE MOST, IS THE OCCASIONAL ENGINE ACCELERATION WHILE APPLYING THE BRAKES AS THE TRANSMISSION DOWNSHIFTS TO A LOWER GEAR. IT CAUSES THE CAR TO ACTUALLY ACCELERATE MOMENTARILY AS YOU APPLY THE BRAKE EVEN HARDER TO ARREST THE INCREASED SPEED. I WAS DRIVING UP A SLIGHT INCLINE AT ABOUT 35-40 MPH WHEN ALL OF A SUDDEN THE CAR IN FRONT OF ME CAME TO A COMPLETE STOP BECAUSE THE CAR IN FRONT OF HER HAD STOPPED COMPLETELY. I HAD DRIVEN THIS ROAD FOR MORE THAN 30 YEARS AND HAD NEVER SEEN ANYONE COME TO A COMPLETE STOP AS THE FIRST CAR DID IN THIS AREA. FIVE(5) OF US WERE ALL SURPRISED. I WAS THE THIRD CAR. AS I FIRMLY APPLIED MY BRAKES, THE CAR INITIALLY SLOWED DOWN BUT THEN IT FELT AS IF IT WAS TRYING TO ACCELERATE AND UNFORTUNATELY I WAS UNABLE TO STOP IN TIME, ALTHOUGH I ONLY LIGHTLY TAPPED THE CAR IN FRONT OF ME, FOLLOWED BY 3 MORE CARS IN BACK OF ME. AT FIRST I WAS SURPRISED THAT I WASN'T ABLE TO STOP IN TIME AND THEN IT OCCURRED TO ME THAT THE STRANGE FEELING I FELT AS THE VEHICLE SLOWED WAS AS IF THE ENGINE HAD ACCELERATED AS IT DOWNSHIFTED CAUSING THE BRAKING ACTION TO NOT BE AS GOOD AS IT SHOULD HAVE BEEN. SINCE I KNEW THE CAR OCCASIONALLY DID THIS I THOUGHT I SHOULD REPORT THIS AS POSSIBLY CONTRIBUTING TO MY PROBLEM AND PUT IT ON RECORD IN CASE YOU HAD OTHER REPORTS LIKE THIS.

Mileage: 41,000

WHILE STATIONARY I TRIED TO SWITCH FROM 4WD AUTO, TO 2WD. THE LIGHT FLASHED AND FAILED TO CHANGE, THEN A SERVICE 4WD SYSTEM POPPED UP. THE VEHICLE IS STUCK IN 4WD AUTO AND NOW LOSES ALL POWER WHILE TRYING TO TURN.

Mileage: 82,000

IN 4 WHEEL DRIVE TURNING LEFT OR RIGHT VEHICLE SLIDES.SKIDS,BOUNCES AND TIRES CHIRP FROM TRACTION LOSS GIVING THE SENSATION THE DRIVE TRAIN IS FALLING OUT. GM REFUSES TO CONTACT ME. THIS OCCURS ON CITY STREETS, HIGHWAYS WHILE IN MOTION. NOT ON A SPECIFIC DATE BUT CONSTANTLY. RAIN OR SHINE.

Mileage: 14,000

2016 CHEVY COLORADO WITH LESS THEN 10,000 MILES. AT LOW RPMS ON ANY INCLINE TRUCK WILL BUCK, SPUTTER, AND HESITATE RATHER THAN AUTOMATICALLY SHIFT INTO LOWER GEAR. IN CITY TRAFFIC, AFTER SLOWING TO MAKE A TURN THEN ACCELERATING, TRUCK WILL BUCK AND SPUTTER AND DRIVE TRAIN WILL MAKE A HAMMER SOUND AFTER ENGAGING . I TOOK IT TO DEALER WHO SAID HE COULD NOT DUPLICATE PROBLEM, ALTHOUGH THIS IS A KNOWN PROBLEM.

Mileage: 10,000

TL* THE CONTACT OWNS A 2016 CHEVROLET COLORADO. THE CONTACT STATED THAT A LOUD ABNORMAL NOISE WAS HEARD WHEN SHIFTING INTO PARK OR REVERSE, AND THE VEHICLE HESITATED BEFORE SHIFTING INTO GEAR. WHILE DRIVING 45 MPH, THE VEHICLE LOST POWER WITHOUT WARNING. ALSO, WHEN THE VEHICLE WAS ENGAGED IN PARK, THE KEY WAS UNABLE TO BE REMOVED FROM THE IGNITION. THE VEHICLE WAS TAKEN TO BELLAMY STRICKLAND CHEVROLET BUICK GMC (145 INDUSTRIAL BLVD, MCDONOUGH, GA 30253, 770-954-3000), BUT THE CAUSE OF THE FAILURES COULD NOT BE DETERMINED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURES. THE FAILURE MILEAGE WAS APPROXIMATELY 35,000.

Mileage: 35,000

I PURCHASED A BRAND NEW 2016 CHEVROLET COLORADO DUROMAX DIESEL IN SEPTEMBER OF 2016. AT 9,638 MILES THE CHECK ENGINE LIGHT CAME ON FOR THE NOX SENSOR. THE DEALERSHIP REPLACED THEM BUT IT DID NOT FIX ANYTHING. AS IT TURNS OUT THE ISSUE WAS A RECALL WHICH REPROGRAMMED THE ECU. THEY DECIDED TO MAKE THE TOLERANCES LOOSER ON THE SENSORS. AT 10,647 MILES THERE WAS A LOUD WINING COMING FROM THE REAR OF THE VEHICLE. THE RACE TO THE PINION BEARING IN THE REAR DIFFERENTIAL WAS PITTED AND CAUSING THE BEARING TO FAIL. THE REAR DIFFERENTIAL NEEDED TO BE REBUILT. AT 22715 MILES THE TRUCK WOULD GO INTO REDUCED POWER MODE WHICH IS 25 MILES PER HOUR IN THE MIDDLE OF THE FREEWAY CAUSING OTHER MOTORISTS TO SWERVE TO AVOID A COLLISION. WHEN THE TRUCK WAS TURNED OFF AND TURNED BACK ON THE ERROR WOULD CLEAR AND THE VEHICLE WAS DRIVABLE AGAIN. THE DEALERSHIP COULD NOT REPLICATE THE ISSUE SO IT TOOK MANY VISITS BEFORE THEY REPLACED THE ACCELERATOR PEDAL POSITION SENSOR. AFTER THIS DID NOT FIX THE ISSUE AND ALMOST CAUSED ANOTHER ACCIDENT THE VEHICLE WAS TAKEN IN AND THE COMPLETE WIRING HARNESS WAS REPLACE. THE TECHNICIAN STATED THAT THE CONNECTORS WERE IMPROPERLY CRIMPED AT THE FACTORY. THE TRUCK IS NOW AT THE DEALERSHIP AGAIN AT 26,000 MILES TO REPLACE THE DIESEL EXHAUST FLUID PUMP. THIS FAULT ALSO CAUSES THE VEHICLE TO GO INTO REDUCED POWER MODE WHICH ALMOST CAUSED AN ACCIDENT AGAIN. THIS VEHICLE IS NOT RELIABLE, DANGEROUS, AND I DO NOT FEEL SAFE DRIVING IT, ESPECIALLY WHEN MY FAMILY IS WITH ME. I CONTACTED CHEVROLET CUSTOMER ASSISTANCE TEAM CONCENTRIX ON BEHALF OF CHEVROLET TO SEEK A SOLUTION ON A BRAND NEW VEHICLE THAT HAD MAJOR PROBLEMS. THE REPRESENTATIVE DID NOT CARE AND TOLD ME TO PURSUE A RESOLUTION ON MY OWN.

Mileage: 10,647

NUMEROUS TIMES WHILE DRIVING, AND GOING DOWNHILL THE TRUCK SHIFTS TO A MUCH LOWER GEAR CAUSING THE RPM'S TO GO UP TO 5500 AND DOES NOT SHIFT OUT. TWICE I HAD THE CRUISE CONTROL ON AND WAS ON THE HIGHWAY (SPEED OF 75) GOING DOWN A HILL AND IT SHIFTED TO A MUCH LOWER GEAR. IT HAS DONE THIS ON OTHER ROADS GOING DOWN HILL AS WELL. IN ADDITION, NUMEROUS TIMES WHEN MERGING WITH TRAFFIC ON A HIGHWAY, I WILL TRY TO TAP THE ACCELERATOR TO SAFELY MERGE WITH TRAFFIC AND THE TRUCK HAS GOTTEN "STUCK" IN A LOWER GEAR AND WOULD NOT SHIFT OUT AND I THOUGHT I WAS GOING TO REAR END A CAR SO I HAD TO RIDE MY BREAK TO MAKE SURE IT WOULD NOT CONTINUE TO ACCELERATE INTO THE BACK OF A CAR. IN ADDITION TO THAT, OFTEN WHEN TRYING TO ACCELERATE OUT OF A CORNER OR AFTER AN OFF RAMP, THE TRUCK WILL NOT ACCELERATE AT THE SAME RATE AS THE OTHER VEHICLES AROUND ME. IT WILL SLOWLY ACCELERATE AS THE VEHICLES AROUND ME PULL AWAY. IN ADDITION TO THAT, WHEN I AM ON THE HIGHWAY AND I NEED TO ACCELERATE QUICKLY TO SAFELY PASS TRAFFIC, I HAVE TO PUSH THE PEDAL TO THE FLOOR TO ENSURE THAT THE TRUCK WILL ACTUALLY ACCELERATE. THE DEALER JUST TELLS ME THAT THE SOFTWARE IS UP TO DATE AND THEY COULD FIND NO RECORD OF SIMILAR ISSUES.

Mileage: 17,000

REAR DIFFERENTIAL MAKING LOUD POPING NOICES WHEN ENGAGED. SOUNDS LIKE METALLIC METAL TO METAL CATCHING AND GRINDING. SPECIALLY WHEN SWITCHING FROM BACKING UP TO DRIVING FORWARDS AGAIN. IS COULD RESULT IN THE DIFFERENTIAL LOCKING UP.

Mileage: 32,000

KEY COULD NOT BE FULLY SHUT OFF,REMOVED.DEALER DETERMINES A SOLONOID ON SHIFT ASSEMBLY FAILED.SOLONOID COULD NOT BE PURCHASED SO A NEW SHIFT ASSEMBLY WAS ORDERED.I WAS BARELY OUTSIDE MY WARRANTY.CHEV REFUSED TO COVER.THIS IS A HAZARD BECAUSE WITHOUT SHUTTING OFF,LOCKING COLUMN AND TRANS IT BECOME A FIRE RISK,THEFT RISK IN THAT KEY CANT BE REMOVED.04

Mileage: 36,800

TRANSMISSION HAS A "STUTTER" TO IT. UPSHIFTS HAVE A 'STUTTER" OR LAG TO THEM AT LOW RPM. VERY DANGEROUS DRIVING AROUND TOWN WHEN YOU HAVE STOP AND GO TRAFFIC. DOWNSHIFTS AUTOMATICALLY GOING DOWN A STEEP GRADE ,THE DOWNSHIFT IS SO BAD IT WANTS TO THROW YOU THROUGH THE WINDSHIELD.HAVE HAD TRUCK TO DEALERSHIP AT LEAST 3 X. TRUCK IS DANGEROUS TO DRIVE IN TRAFFIC AS THIS TRANSMISSION IS NOT WORKING PROPERLY. HAVE CONTACTED GM IN DEC. OF 2017 BUT GOT NO REPLY (IMAGINE THAT). TRUCK HAS ABOUT 18,500 MILES ON IT BOUGHT IN DEC. OF 2016. HIGHWAY DRIVING IS FINE, DRIVING AROUND TOWN IS TERRIBLE AS I SAID TRANSMISSION "BUCKS" OR "STUTTERS". FOR THE TIME BEING TRUCK WILL SIT AND WILL NOT BE DRIVEN EXCEPT TO THE DEALER.

DURING OWNERSHIP OF MY 2016 CHEVROLET COLORADO V6 GASOLINE ENGINE VEHICLE IT HAS HAD NUMEROUS SPUTTERING SITUATIONS WHEN ACCELERATING. THERE IS NO RHYME OR REASON AS TO WHY THE TRUCK SPUTTERS TO ALMOST STALLING. DEALERSHIP CLAIMS THAT THE FUEL INJECTORS ARE PROBABLY DIRTY / FOULED. HAD INJECTOR MAINTENANCE PERFORMED AND TRUCK HAS NO BETTER ENGINE PERFORMANCE AND SPUTTERING CONTINUES. THIS IS DANGEROUS ON HIGHWAY WHEN ACCELERATING IN TRAFFIC. THIS HAS BEEN OCCURRING SINCE ORIGINAL PURCHASE DATE IN OCTOBER 2015.

Mileage: 49,900

TL* THE CONTACT OWNS A 2016 CHEVROLET COLORADO. WHILE BACKING OUT OF A PARKING LOT AND ATTEMPTING TO MAKE A LEFT TURN, THE VEHICLE "JUMPED AND MADE AN UNUSUAL NOISE". THERE WERE NO WARNING INDICATORS ILLUMINATED. THE CONTACT DROVE TO HIS RESIDENCE AND PARKED THE VEHICLE. THE DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 33,026. THE VIN WAS NOT PROVIDED. *JS

Mileage: 33,026

TRANSMISSION ERRATIC SHIFTING AT LOW SPEEDS . TRANSMISSION ACTS LIKE IT IS LOST AND DOES NOT KNOW WHAT GEAR TO GO TOO . HUNDREDS OF INTERNET COMPLAINTS WITH NO FIX .

Mileage: 20,200

TRANSMISSION HESITATION: VEHICLE DOESN'T ACCELERATE WHEN ITS SUPPOSED TO. WHEN GOING FROM A NORMAL RATE OF SPEED TO SLOWING DOWN TO MAKE A TURN, DOESN'T DOWNSHIFT PROPERLY, THEREFORE WHEN YOU MAKE THE TURN AND ACCELERATE AGAIN IT HESITATES (NEARLY STALLING) JERKS AND SKIPS. HAVE HAD MANY CLOSE CALLS BECAUSE OF THIS. NEARLY BEING REAR ENDED ON SEVERAL OF THOSE OCCASIONS. HAVE TRIED CONTACTING GM ABOUT THE PROBLEM AND GOT NOWHERE. HAVE BEEN PUT ON A WAITING LIST AT THE DEALERSHIP WITH NO INDICATION OF WHEN THIS WILL BE FIXED. IT HAS EVEN GOT TO THE POINT WHERE MY FUEL ECONOMY HAS SERIOUSLY DIMINISHED.

Mileage: 10,000

TRANSMISSION FAILS TO DOWNSHIFT PROPERLY AND SHUTTERS WHEN COMING BACK UNDER ACCELERATION AFTER SLOWING (TO YIELD FOR EXAMPLE) AND SOMETIMES SHUTTERS WHEN COMING TO A STOP. IF I TAP THE ACCELERATOR TO FORCE IT TO DOWNSHIFT, IT VIOLENTLY SHIFTS TO A TOO-LOW GEAR AND THE ENGINE REVS TOO HIGH.

Mileage: 10,000

NOTICED IMMEDIATELY AFTER PURCHASE WITH 18 MILES. NOTICED AT SLOWER SPEEDS UNDER 45 MPH THE TRUCK WOULD UP-SHIFT TO A HIGHER GEAR WHEN LETTING OFF THE ACCELERATOR. UPON DEPRESSING THE ACCELERATOR AGAIN THE TRUCK WOULD HESITATE, JERK,PING, OR JUST PLAIN NOT ACCELERATE UNTIL EXCESSIVE PRESSURE WAS PLACED ON THE ACCELERATOR. AT THIS POINT IT WOULD DOWN-SHIFT HARD A COUPLE OF GEARS AND CAUSE UNSAFE ACCELERATION IN HIGH TRAFFIC SCENARIOS.

Mileage: 100

TL* THE CONTACT OWNS A 2016 CHEVROLET COLORADO. THE FAILURE RECURRED NUMEROUS TIMES. THE VEHICLE WAS TAKEN TO A DEALER WHERE THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 102,000. UPDATED 06/23/17*LJ *AS

Mileage: 10,000

AT APPROX. 3500 MILES STARTED EXPERIENCING SHIFTING ISSUES. WHEN SLOWING DOWN TRANSMISSION WANTED TO STAY IN 5TH OR 6TH GEAR. ATTEMPTS TO ACCELERATE CAUSED THE TRUCK TO BOG DOWN UNTIL IT SHIFTED TO A LOWER GEAR TO ACCELERATE AGAIN. WHEN IN CRUISE CONTROL PROBLEM WAS REALLY BAD. WOULD LOOSE AS MUCH AS 5-8 MPH BEFORE A LOWER GEAR WAS FOUND TO MAINTAIN SPEED IN HILLY CONDITIONS. I TOOK VEHICLE IN FOR ITS FIRST SERVICE AT APPROX. 6000 MILES AND HAD DEALER CHECK TRANSMISSION. THEY REMAPPED SHIFT POINTS TO SPEC SOFTWARE. THIS WAS A TEMPORARY FIX. ISSUE IS SLOWLY RETURNING. I HAVE WATCHED ON CONTROL PANEL AT TRANSMISSION OIL TEMP ( TRUCK HAS TRAILER TOWING PACKAGE ETC. THIS IS A CLUSTER FEATURE AVAILABLE.) SEEMS TO SHIFT PROPERLY UNTIL OIL REACHES 100 DEGREES PLUS THEN ISSUE ARRIVES. DEALER RELAYED THERE HAD ONLY BEEN A TECH SERVICE BULLETIN HAS BEEN TO RESET MAP/SHIFT POINTS. RECENTLY PULLED MY BOAT WITH THIS TRUCK AND TRANSMISSION SHIFTED FINE. REALLY WOULD LIKE THIS ISSUE FIXED BECAUSE OTHER THEN THIS PROBLEM REALLY LIKE THE TRUCK.

Mileage: 3,500

THE TRUCK WHEN SLOWING DOWN TO AROUND 20MPH AND ACCELERATING SEEMS TO LAG OR FOR LACK OF A BETTER DESCRIPTION SEEMS TO BE "UNABLE" TO FIND THE CORRECT GEAR. SOMETIMES IT ACTS AS IF THE ENGINE HAS A "MISS". I TOOK IT TO THE DEALER AND WAS TOLD THIS IS "NORMAL OPERATION". WHEN YOU GOOGLE THIS COMPLAINT THERE IS PAGE AFTER PAGE OF OWNERS HAVING THE SAME PROBLEMS WITH 2015 AND 2016. IT SEEMS TO ME THIS IS A PROGRAMMING ISSUE WITH THE TRANSMISSION. IT SEEMS TO HAVE TROUBLE FINDING THE CORRECT GEAR AND WILL SOMETIMES JERK OR DOWNSHIFT TOO LOW. IT HAPPENS AT ANY TIME THE VEHICLE SLOWS DOWN TO AROUND 20 AND ACCELERATES. IT ALSO HAPPENS AT TIMES WHEN AT A FULL STOP AND TAKING OFF IN A NORMAL MANNER.

Mileage: 1,800

WHEN TRYING TO ACCELERATE FROM A LOW SPEED, MAYBE 20 MPH OR LESS, THE TRANSMISSION OFTEN DOES NOT DELIVER ANY POWER TO THE DRIVE WHEELS (THE MOTOR REVS UP BUT THE VEHICLE DOES NOT ACCELERATE). ALSO, WHEN CLIMBING A HILL AT NORMAL ROAD SPEEDS THE TRANSMISSION OFTEN DOES NOT DOWN SHIFT, TO THE POINT WHERE THE MOTOR ALMOST STALLS, AND THE FEW TIMES THAT IT DOES DOWN SHIFT THERE IS AN EXPLOSIVE INCREASE IN ENGINE RPMS RESULTING IN AN ALMOST UNCONTROLLABLE BURST OF VEHICLE SPEED. CHEVROLET SAYS THIS IS THE WAY IT'S DESIGNED TO WORK. IF IT IS, IT'S THE FIRST VEHICLE I'VE SEEN, OR EVEN HEARD ABOUT, THAT DOES THESE DANGEROUS THINGS.

Mileage: 2,000

VEHICLE STALLS. WHEN NAVIGATING A CORNER TRANSMISSION LOOSES ITS GEAR AND ACTS LIKE IT DOESN'T KNOW WHAT TO DO AND BANGS AND STALLS. ALSO TRANS ACTS CONFUSED STOP AND GO SITUATIONS(CITY) AND BANGS WHEN IT REMEMBERS. ALSO DOES THIS WHEN COASTING ON HIGHWAY AND ACCELERATING AGAIN. IT MAY JUMP DOWN SEVERAL GEARS AND TAKE OFF. VEHICLE ALSO HAS STALLED SEVERAL TIMES AT RED LIGHTS AND HAS A ROUGH IDLE MOST OF THE TIME LIKE IT WANTS TO STALL. BEEN IN SHOP NUMEROUS TIMES FOR SAME THING AND ADVISED CHEVY BUT THEY CANT FIGURE IT OUT AND IT IS STILL DOING IT. ALSO LOOKED ONLINE FOR POSSIBLE ANSWERS AND THERE ARE A LOT OF THESE SAME PROBLEMS REPORTED WITH NO ANSWERS.

Mileage: 1,000

CHEVY 2016 COLORADO Z71 V6 WITH A 6 SPEED AUTOMATIC: THE TRANSMISSION DOES NOT SHIFT UNDER LIGHT ACCELERATION OR WHEN UNDER LOAD GOING UP A HILL. THE TRUCK HESITATES SEEMS TO MISS AND DOESN'T KNOW WHAT TO DO TO GET IT SO ACCELERATE! IT ALSO HAS THIS ISSUE WHEN LIFTING MY FOOT ON THE GAS WHEN ROLLING THROUGH A CORNER AND THEN HITTING THE ACCELERATOR. THEN I HAVE TO PUSH THE ACCELERATOR HARD TO MAKE THE TRANSMISSION UP SHIFT 2 GEARS TO MAKE THE TRUCK ACCELERATE! THIS IS FRUSTRATING AND DANGEROUS AS IT COULD CAUSE BEING HIT FROM BEHIND WHEN THE TRUCK DOES NOT ACCELERATE AS IT SHOULD. I TOOK MY TRUCK BACK TO THE DEALERSHIP THREE TIMES AND THEY SAID 'THERE ARE NO CODES, THERE SEEMS TO BE NOTHING WRONG THE COMPUTER DOESN'T KNOW WHETHER TO STAY IN THAT GEAR OR UP SHIFT 1 GEAR OR 2. ALL YOU HAVE TO DO IS TO PUSH DOWN HARDER ON THE ACCELERATOR AND LEARN TO DRIVE WITH A SMART TRANSMISSION.' MY REPLY WAS 'I AM NOT PART OF THE VEHICLE SENSOR SYSTEM AND I SHOULD NOT HAVE TO LEARN HOW TO DRIVE TO A POOR SHIFTING SITUATION ESPECIALLY WHEN I AM PAYING THIS MUCH FOR A NEW VEHICLE.' GM SHOULD BE FORCED TO FIX THIS VERY COMMON PROBLEM BEFORE SOMETHING SERIOUS HAPPENS AS A RESULT OF THIS!

Mileage: 4

LOW TO MODERATE SPEED GEAR SHIFT HESITATION, TRANSMISSION NOT SMOOTHLY SHIFTING,. FEELS LIKE A BAD MISS. ELECTRONICS AND TRANSMISSION/ENGINE NOT IN SYNCH OR SYNCHING. HESITATION, LACK OF RESPONSIVENESS CAN BE SEVER AT TIMES. REBOOT OF ECM HELPED, BUT ISSUE HAS RETURNED WORSE THAN EVER. THIS HAS BEEN A PROBLEM SINCE DAY ONE OF OWNERSHIP. HILL DECENT CONTROL ACTIVATES AT AL SPEEDS INCLUDING HIGH END HIWAY SPEEDS. 40, 50, 60, 70+ MPH ENGAGEMENT - TAP THE BRAKE AND IT ACTIVES. ENGINE RPM'S GO THROUGH THE ROOF. DISABLING THE CONTROL WIT THE BUTTON DOES NOT DEACTIVATE. DEALERSHIP HAS NOT AND DOES NOT OFFER ANY SOLUTION. SEVER LOSS OF CONTROL OF VEHICLE COULD OCCUR IN INCLEMENT WEATHER OR OTHER CONDITIONS. ALSO, FAST SLOW DOWN WITH NO WARNING TO OTHER DRIVERS IN THE VICINITY. ENGINE RPM'S AS HIGH AS 5K IN MY TRUCK IN MOUNTAINOUS PENNSYLVANIA DECEMBER 2016.

Mileage: 14,000

SINCE PURCHASE OF VEHICLE, IT HAD A BUCKING AT SPEED OF 25-40 MPH, THIS WAS VERY NOTICEABLE IN CITY DRIVING, THIS ISSUE WAS COUPLE WITH UNCONTROLLED SURGES IN THE ENGINE. THE VEHICLE WAS PURCHASE OCT 28 OR 30, 2016. I TURNED IN THE VEHICLE FOR SERVICE ON DEC 19, 2016, DEALER SERVICE REP CONFIRM THERE WAS AN ISSUE AND KEEP THE TRUCK FOR REPAIRS. VEHICLE WAS IN THE SERVICE DEPARTMENT FOR OVER 40 CONSECUTIVE DAYS TO FIX ISSUE, DEALERSHIP TECHS, AS WELL AS GM FIELD REPS HAVE LOOKED AT THE VEHICLE AND HAVE TRIED TO FIX IT TO NO AVAIL. ON FEB 8, THE GM REP SAID THERE IS NOTHING WRONG WITH THE VEHICLE AND THE ISSUE WAS A SOFTWARE PROBLEM WITH THIS SPECIFIC TYPE VEHICLE AND THAT THE SOFTWARE THIS VEHICLE HAS IS A NEW SOFTWARE. WHEN I ASKED IF THIS ISSUE IS BEING WORKED BY THE SOFTWARE ENGINEERS FOR SOLUTION THE REP SAID HE HAS NO IDEA AND THAT I SHOULD TAKE THE VEHICLE BACK. THIS ISSUE IS A SAFETY PROBLEM ESPECIALLY WHEN SUDDENLY SURGES WITHOUT CONTROL, PARTICULARLY WHILE DRIVING IN A CITY CENTER A DRIVER CAN CAUSE AN ACCIDENT OR POTENTIALLY HIT A PERSON WHILE LOOSING CONTROL. GM COSTUMER ASSISTANT WAS CONTACTED, BUT THERE WAS NOT HELP AND GM REFUSES TO LET ME KNOW WHEN THE FIXES FOR THIS ISSUE WILL BE OUT. THEREFORE I HAVE REFUSE TO TAKE POSSESSION OF VEHICLE UNTIL IF FIXED CORRECTLY!! THIS ISSUE WILL AFFECT ALL 2016 AND UP COLORADO WITH DURAMAX ENGINE AND NEW SOFTWARE VERSION INSTALLED ON THEM.

Mileage: 1,200

VEHICLE HAS ERRATIC DOWNSHIFTING AND UPSHIFTING OF THE AUTOMATIC TRANSMISSION CAUSES ABRUPT CHANGES IN ACCELERATION AND DECELERATION THAT SETS UP SEQUENCES THAT FORCE THE DRIVER TO CONTINUALLY PRESS DOWN ON, OR LET UP, ON THE BREAK AND OR ACCELERATOR TO ATTEMPT TO BLEND IN WITH STOP-AND-GO TRAFFIC. ONLY GETTING 15-16.5 MPG CITY DRIVING.

Mileage: 28

THIS VEHICLE'S ERRATIC DOWNSHIFTING AND UPSHIFTING OF THE AUTOMATIC TRANSMISSION CAUSES ABRUPT CHANGES IN ACCELERATION AND DECELERATION THAT SETS UP SEQUENCES THAT FORCE THE DRIVER TO CONTINUALLY PRESS DOWN ON, OR LET UP, ON THE BREAK AND OR ACCELERATOR TO ATTEMPT TO BLEND IN WITH STOP-AND-GO TRAFFIC. IN VERY HEAVY TRAFFIC, PRESENT WHEN ENTERING OR LEAVING LARGE CITIES, THE ONSET AND CONTINUANCE OF THIS VEHICLE'S PERFORMANCE WORSENS RESULTING IN DRIVER FATIGUE AND EXTREME STRESS, BROUGHT ON BY THE EVER PRESENT NECESSITY TO BE EXTRA WATCHFUL AND TO MANEUVER TO AVOID HITTING THE VEHICLE IN FRONT, OR BEING REAR-ENDED. WHEN DRIVING THROUGH MOUNTAINOUS TERRAIN AT TODAY'S INTERSTATE SPEEDS, THERE IS RECURRING "BUMPING" THAT SETS UP WHEN ASCENDING LONG GRADES. IT CREATES THE FEELING THAT EITHER THE TRANSMISSION IS ATTEMPTING TO DOWNSHIFT BUT THEN CHANGES ITS MIND, OR THE ENGINE'S RPM ARE ABOUT TO INCREASE BUT DON'T. THIS ADDS TO FEAR OF IMMINENT FAILURE AND BEING LEFT STRANDED. THIS BEHAVIOR WAS PRESENT FROM THE VERY FIRST TIME THE VEHICLE WAS DRIVEN. IT'S GETTING WORSE.THIS DRIVER BELIEVES THE UNSAFE OPERATING PERFORMANCE OF THIS VEHICLE AS DESCRIBED ABOVE, IS EXACERBATED BY THE COMBINATION OF THE SMALL, 4 CYLINDER ENGINE COUPLED TO THE 6 SPEED TRANSMISSION, THAT REQUIRES THE ENGINE TO RAPIDLY DOWNSHIFT OR UPSHIFT TO PROVIDE THE NEEDED PERFORMANCE REQUIRED IN TODAY'S DRIVING ENVIRONMENTS. FURTHER, IT IS EVIDENT THE SOFTWARE CONTROLLING THE TRANSMISSION'S OPERATING BEHAVIOR WAS NEITHER FULLY DEVELOPED NOR TESTED THROUGHOUT ITS ANTICIPATED FULL OPERATING RANGE AND AS SUCH CREATES A VEHICLE THAT IS DANGEROUS TO OPERATE ON PUBLIC ROADS ATTEMPTS TO HAVE THESE ISSUES ADDRESSED WITH THE DEALER RESULTED IN BEING TOLD..." NOTHING CAN BE DONE...THE PROBLEMS YOU ARE ENCOUNTERING ARE BEING ARE BEING EXPERIENCED BY MANY CUSTOMERS. CHEVROLET IS NOT PROVIDING ANY SOLUTIONS". *TR

Mileage: 7,600

IN MOTION, WHEN DRIVING SPEED LIMIT AND THEN YOU LET OFF ACCELERATOR TO SLOW DOWN AND THEN YOU PRESS GAS AGAIN IT HESITATES AND DOES NOT WANT TO ACCELERATE. I TOOK TO DEALERSHIP AND THEY SAID THEY FIXED BY PROGRAMMING SOMETHING IN COMPUTER AND IT RAN FINE FOR 3 DAYS AND STARTED DOING SAME THING AGAIN. AND ALSO, WHEN YOU ACCELERATE AND IT WILL NOT RESPOND YOU GIVE IT A LOT OF GAS AND IT MAKES RPMS GO TO LIKE 5000, BUT THE RPM DO NOT MATCH THE SPEED, ITS VERY STRANGE. I SEE OTHER COMPLAINTS ABOUT THE SAME THING ON FORUMS. *TR

Mileage: 50

TRANSMISSION DOWN SHIFT SLOW TO RESPOND. FEELS LIKE IT IS OUT OF GEAR, OR LIKE A ENGINE HESITATION, STEEPING DOWN ON ACCELERATOR HARD MAKES IT SHIFT BUT THE SHIFT IS HARD. CONCERNED ABOUT THIS HAPPENING ON ICE CAUSING A POSSIBLE SPIN OUT.

Mileage: 17,555

VEHICLE HESITATES AND STUMBLES ON ACCELERATION DURING MOTION WHEN ACCELERATION IS RESUMED WHILE MOVING. IT SEEMS THAT THE TRANSMISSION IS NOT SHIFTING DOWN. YOU HAVE TO GET INTO THE ACCELERATION, WHICH IS A SAFETY CONDITION IN TRAFFIC. AT TIMES IT STUMBLES BAD ENOUGH TO SLOW SPEED DRAMATICALLY, WHICH IS ALSO A SAFETY CONDITION ON INTERSTATE. TOOK THE VEHICLE TO DEALERSHIP AND THEY ARE DEDICATED TO SAYING THAT THERE IS NO CODES UP AND I AM NEARLY AT THE POINT TO SEEK HELP FROM LAWYER ON THE SITUATION.

RECURRING PROBLEM. INTERMITTENT PROBLEM. ENGINE HESITATES BETWEEN 1000 AND 2500 RPM. CAUSES UNEXPECTEDLY POOR ACCELERATION FROM A STOP. CAUSES UNRESPONSIVE THROTTLE. CAUSES TRANSMISSION OVERSHIFTS (SHIFTING 2-3 GEARS LOWER). CAUSES UNSAFE DRIVING CONDITIONS WHEN ACCELERATION IS LESS THAN ANTICIPATED.

Mileage: 6,000

TRANSMISSION DOES NOT DOWNSHIFT PROPERLY UNDER ANY TYPE OF ACCELERATION (SLOW OR SUDDEN) ESPECIALLY BETWEEN 20 MPH AND 40 MPH IN NORMAL STREET TRAFFIC AND ON THE HIGHWAY. IT ALSO HUNT FOR GEARS ESPECIALLY BETWEEN GEARS 4 THROUGH 6. IT HESITATES FOR APPROXIMATELY 2 TO 3 SECONDS, FINDS A GEAR, HESITATES AGAIN, AND THEN DROPS TO AN EVEN LOWER GEAR AND OVER ACCELERATES. WHAT I HAVE OBSERVED IS THAT THE VEHICLE IS TOO EAGER TO UPSHIFT AND SOMETIMES GOES INTO 5TH OR 6TH GEAR AND DROPS THE ENGINE BELOW 1000 RPM. IT STAYS IN THAT GEAR WHEN SLOWING DOWN AND WHEN ACCELERATED IT STAYS IN THE HIGH GEAR ON BOGS DOWN AND ON TWO OCCASIONS STALLED. THIS IS DANGEROUS ESPECIALLY IN HIGHWAY TRAFFIC AND IS ESPECIALLY DANGEROUS WHEN ACCELERATING TO PASS OR ACCELERATING ON AN HIGHWAY ONRAMP TO MERGE WITH TRAFFIC. I HAVE TAKE THE TRUCK TO DEALER AT AROUND 2000 MILES. WAS TOLD THAT THEY COULDN'T FIND ANY PROBLEMS AND THEY "RESET" THE TRANSMISSION. IT RAN FINE FOR ONE DAY AND BEGAN THE PROBLEMS AGAIN. I HAVE OPERATED THE TRUCK NOW TO 6000 MILES TO SEE IF THE TRANSMISSION CAN "LEARN" ITS WAY OUT OF THIS AND IT HAS NOT. I AM GOING TO DEALER AGAIN AND IF THEY TELL ME AGAIN THAT THERE IS NO PROBLEM, I AM GOING TO FORCE THE SERVICE MANAGER TO DRIVE WITH ME FOR A DAY TO EXPERIENCE THE PROBLEM.

Mileage: 2,000

ON NUMEROUS OCCASIONS WHILE ENTERING/EXITING VEHICLE MY KNEE LIGHTLY BRUSHES THE 4 WHEEL DRIVE ENGAGE SWITCH LOCATED ON THE DASHBOARD. THIS ACTIVATES THE 4 WHEEL DRIVE ON THE VEHICLE. THIS IS HAPPENING WITHOUT MY KNOWLEDGE. SINCE THERE IS NO OBVIOUS INDICATOR ON THE DASH THE THE VEHICLE IS IN 4 WHEEL DRIVE, IF I DO NOT NOTICE THE BRIEF "ENGAGING 4 WHEEL DRIVE MESSAGE" THERE IS NO WAY OF KNOWING THAT IT IS IN 4 WHEEL DRIVE UNTIL THE VEHICLE STARTS "HOPPING" ON DRY PAVEMENT WHILE TURNING. SHOULD THIS HAPPEN AT HIGHWAY SPEED ON A CURVE THERE IS THE STRONG RISK ON A ROLLOVER. I HAVE FOUND MYSELF HAVING TO REGULARLY CHECK THE KNOB IN ORDER TO DETERMINE IF THE 4 WHEEL DRIVE IS INADVERTENTLY ENGAGED BY THIS LIGHT BRUSHING OF THE KNOB.

Mileage: 100

"THE TRANSMISSION DOES NOT DOWNSHIFT FROM A HIGH GEAR (5 OR 6) TO A LOWER GEAR WHEN SLOWING DOWN FROM 45 MPH TO 20 MPH (OR LOWER). WHEN THE ACCELERATOR IS DEPRESSED TO ACCELERATE THE ENGINE BUCKS, VIBRATES, AND DOES NOT ACCELERATE. THE ENGINE RPM DROPS TO 1,000 RPM OR LOWER. IF THE ACCELERATOR IS QUICKLY FLOORED THE TRANSMISSION DOWNSHIFTS SEVERAL GEARS LOWER AND JERKS FORWARD. THIS CONDITION HAPPENS PRIMARILY ON SECONDARY ROADS WHILE DRIVING ALONG THE ROAD AND WHEN PULLING FROM ONE ROAD INTO TRAFFIC ON ANOTHER ROAD. THE SITUATION WHEN PULLING INTO TRAFFIC IS DANGEROUS BECAUSE THE TRUCK DOES NOT ACCELERATE AS IT SHOULD. THIS TRUCK WAS PURCHASED NEW AND HAS 1200 MILES ON IT. THIS CONDITION HAS BEEN PRESENT SINCE THE TRUCK WAS PURCHASED AND THE SEVERITY VARIES WITH TRUCK SPEED AND ROAD INCLINATION. I REPORTED THE SITUATION TO THE DEALER AND THEY ATTEMPTED A FIX (HAD THE TRUCK FOR THREE DAYS) THAT SUPPOSEDLY INVOLVED A "NEW DOWNLOAD" FROM CHEVROLET, BUT IT DIDN'T CHANGE A THING. DEALER KNOWS IT DIDN'T FIX ANYTHING AND SAYS CHEVROLET MAY HAVE A "RECALL UPDATE", BUT READING ALL THE OTHER SIMILAR COMPLAINTS, I'M SUSPICIOUS. IN THE 1 MONTH I HAVE HAD THE TRUCK, I HAVE ALMOST BEEN HIT TWICE BY APPROACHING TRAFFIC BECAUSE OF HESITANT ACCELERATION. THIS IS A DANGEROUS PROBLEM AND CHEVROLET NEED TO FIX IT IMMEDIATELY. I

I LIVE IN A RURAL AREA WITH MODERATE HILLS AND MANY WINDING ROADS AND TREE OBSCURED CORNERS. WHILE DRIVING AT A MODERATE SPEED (30-40 MPH), I EXPERIENCE PROBLEMS WITH THE VEHICLE'S ABILITY TO DOWNSHIFT FROM OVERDRIVE TO ADDRESS THE INCREASING INCLINE. THE VEHICLE WILL, DESPITE NORMAL INCREASE IN FUEL PEDAL PRESSURE, LOSE RPM'S FROM APPROXIMATELY 2,000 TO 1,000. AS IT APPROACHES 1,000 RPM, THE VEHICLE BEGINS TO "STUTTER" AND "LURCH" AS THE ENGINE TRIES TO COPE WITH THE HIGHER GEAR. THERE ARE TWO "FIXES" FOR THIS; PUSHING THE GAS PEDAL DOWN FIRMLY, WHICH CAUSES THE VEHICLE TO RADICALLY DOWN SHIFT AND "LEAP" FORWARD, OR TO DROP THE TRANSMISSION LEVER TO "MANUAL" AND MANUALLY CHANGE GEARS (WITHOUT THE "LEAP" SEEN IN THE FIRST METHOD). THE END RESULT OF THE NON-MANUAL APPROACH IS TO CAUSE THE VEHICLE TO ACCELERATE RADICALLY IN AN ENVIRONMENT OF OBSCURED CORNERS AND UPHILL DRIVING. I BELIEVE THIS IS A DANGEROUS SAFETY PROBLEM AS THE AREA IS SWARMING WITH DEER, BICYCLISTS, PEDESTRIANS, ETC. I HAVE ALSO HAD "STUTTERING" INCIDENTS WHEN ACCELERATING FROM LOW SPEED, TO ENTER TRAFFIC, INTERSTATE, ETC., ALTHOUGH THESE HAVE BEEN INTERMITTENT IN NATURE. I HAVE NOTICED THAT THE VEHICLE WILL ALSO RADICALLY DOWNSHIFT GOING DOWNHILL WITHOUT WARNING AND SEEMS TO TAKE A LONG TIME TO UP SHIFT ONCE IT IS ON LEVEL GROUND - AGAIN AN INTERMITTENT ACTION. FORTUNATELY NO ONE HAS BEEN "TAILGATING" ME WHEN THIS OCCURS (A COMMON FAILING OF DRIVERS IN THIS AREA). I HAVE HAD THE VEHICLE TO THE DEALER TWICE FOR THE FAILURE TO DOWNSHIFT FOR A HILL AND THEY TELL ME CHEVROLET DOES NOT RECOGNIZE A PROBLEM WITH THE TRANSMISSION, SHIFTING, ETC. A SIDE NOTE: THIS PROBLEM DOES NOT EXIST IN CRUISE CONTROL, BUT USE OF CRUISE CONTROL ON THESE BACK ROADS WOULD NOT BE ADVISABLE.

Mileage: 13,451

CHEVY SAID THERE ARE NO FIXES FOR THE FOLLOWING COMPLAINTS. TRANSMISSION IS ACCEPTABLE AND SMOOTH SHIFTING UNDER LIGHT LOADS. UNDER A NEED FOR DOWNSHIFTING FOR ACCELERATION THE DOWN SHIFTING IS DELAYED OR HESITATES MOMENTARILY AND THEN THE TRUCK JERKS FORWARD TO A EXCESSIVELY LOWER GEAR & THE UPSHIFTS TO THE GEAR IT SHOULD HAVE IN THE FIRST PLACE. THE DELAY OR LAG IN DOWNSHIFTING CREATES A VERY DANGEROUS CONDITION WHEN NEEDING INSTANT POWER. THERE IS MUCH DIFFICULTY WHEN MERGING INTO TRAFFIC WHEN POWER IS NEEDED.. MANIPULATING THE MANUAL SHIFT CAN COVER UP THIS DEFECT ON SOME OCCASIONS WHEN IF YOU HAVE TIME TO PLAN FOR IT. THE TRANSMISSION ALSO SHUTTERS AT LOW LOAD MANY TIMES RESULTING IN NO POWER UNTIL YOU DOWNSHIFT. THEN THIS DOWNSHIFT IS DELAYED AND THEN BECOMES ABRUPT AGAIN. THE SHUTTER FEELS LIKE THE TRUCK IS GOING OVER SMALL BUMPS IN THE ROAD. THE TRANSMISSION SHIFTING IS CERTAINLY NOT CORRECT AND CERTAINLY RESULTS IN UNSAFE SITUATIONS. I SHOULD HAVE TEST DRIVEN THE TRUCK UNDER MORE CONDITIONS THAN I DID AND PROBABLY WOULD NOT HAVE PURCHASED IT. I HEAR THAT THIS PROBLEM CAN BE FIXED WITH AN AFTERMARKET COMPUTER UPDATE. CHEVY PROBABLY DOSE NOT WANT TO ADMIT THAT IN ORDER TO HAVE THE GAS MILEAGE RATINGS THE TRANSMISSION MUST BET THIS WAY. ALSO NOTE THAT THE 2017 COLORADO WILL HAVE AN 8 SPEED TRANSMISSION.

2,400 MILES AND THIS VEHICLE HAS BEEN BACK TO THE DEALER FOUR TIMES FOR "CHUGGING AND SHUTTERING" IN HEAVY TRAFFIC. DRIVING THOUGH AN INTERSECTION WITH HEAVY TRAFFIC IT WILL NOT KEEP UP WITH TRAFFIC BUT TENDS TO BOG DOWN ALMOST GETTING REAR ENDED FROM BEHIND. IF YOU TRY TO SMOOTHLY ACCELERATE IT WILL RAPIDLY DOWNSHIFT AND JUMP FORWARD ALMOST REAR ENDING ANY VEHICLE IN FRONT. VERY UNSAFE TO DRIVE. TRYING TO DRIVE WITH THE FLOW OF TRAFFIC AT 35-40 MPH THE TRUCK SHUTTERS AS IF THE SPARK PLUGS ARE WORN OUT. ALSO TRYING TO ACCELERATE INTO ON COMING TRAFFIC IT WILL SOMETIMES CHUG TO WHERE YOU WONDER IF IT'S GOING MAKE MAKE THE MERGE. VERY FRUSTRATING TO DRIVE FOR A BRAND NEW TRUCK, THE DEALER REPLACED THE TORQUE CONVERTER AT 500 MILES, THEN HAS PREFORMED SERVICE BULLETIN #PIP5342B THREE TIMES WITH ABSOLUTELY NO IMPROVEMENT. GM STATES IN THE BULLETIN "NOTE: PREFORMING THIS CALIBRATION UPDATE MAY NOT TOTALLY ADDRESS THE SHUDDER OR CHUGGING CONCERNS" HOW CAN NEW VEHICLES CONTINUE TO BE SOLD WITH THIS KNOWN PROBLEM? NOT ONLY IS IT FRUSTRATING TRYING TO DRIVE SMOOTHLY, BUT IT IS ALSO A SAFETY CONCERN. DUE TO THE POOR PERFORMANCE THE MILEAGE IS ABOUT 13 MPG IN CITY TRAFFIC, NOT EVEN CLOSE TO THE MILEAGE RATING OF 17 MPG.

Mileage: 2,400

DELAYED OR NO DOWNSHIFT. TRAVELING ABOUT 2 MPH AND TURNING EITHER RIGHT OR LEFT AND APPLYING THROTTLE THE TRUCK DOES NOT RESPOND UNTIL THE THROTTLE IS INCREASED STEEPLY . THE TRANSMISSION DOES THEN SHIFT TO A MUCH LOWER GEAR AND ACCELERATION IS DRAMATIC.

Mileage: 4,600

WHILE DRIVING ON A HILLY HIGHWAY AT 55 MPH, THE TRUCK SUDDENLY LURCHED INTO AN EXTREME DOWNSHIFT AS I WAS GOING DOWNHILL. I HAD NOT BEEN MAKING ANY SIGNIFICANT BRAKING OR ACCELERATION MOTIONS--JUST DRIVING NORMALLY WITH THE FLOW OF TRAFFIC AND I HAD NOTHING IN TOW. THE TRUCK DECELERATED QUICKLY AND THE RPMS CLIMBED SIGNIFICANTLY. THIS OCCURRED TWICE: ONCE AROUND 2,800 MILES AND A SECOND TIME AT 3,400 MILES, UNDER THE SAME CONDITIONS - DRY ROADS, DAYTIME, GOING DOWNHILL ON A HIGHWAY. THERE WERE NOT ANY WARNINGS, AND NONE OF THE SERVICE LIGHTS CAME ON. IT WOULD NOT SHIFT OUT OF THIS GEAR. EACH TIME, I HAD TO AVOID BEING HIT FROM BEHIND, AND PULLED OVER TO THE SIDE OF THE ROAD TO STOP COMPLETELY. THEN I WAS ABLE TO PROCEED WITH NORMAL FUNCTIONING OF THE TRANSMISSION. THE CAUSE IS UNKNOWN.

Mileage: 2,800

WHILE DRIVING THE 2016 COLORADO, THE TRANSMISSION/ENGINE SEEMS TO HAVE TROUBLE SHIFTING AND ACCELERATING AND THE SHIFT PATTERNS ARE ERRATIC IT SEEMS, MAYBE ITS THE FUEL EFFICIENT CRAP THAT SHUTS DOWN CYLINDERS, MAYBE ITS THE TRANS? . EXPERIENCED IT ON HIGHWAYS AND LOWER SPEEDS, STOP AND GO TRAFFIC, TRUCK'S TRANSMISSION CLUNKS, SHIFTS HARD AT RANDOM AND STUTTERS ALLOT . IT'S AGGRIVATING. WHEN TRYING TO PASS, SEEMS TO BE ZERO ACCELERATION FELT WHEN FLOORING IT THEN SUDDENLY KICKS IN (ROUGHLY)..LIKE OH HEY-I NEED TO GO.. I COULD GET IN A WRECK-ENDED BECAUSE OF THIS AND I BETTER NOT TRY TO PASS ANYONE.. I FEEL MY SAFETY COULD BE AT RISK WITH AS MUCH HESITATION THEN SUDDENLY LURCHES AS IT HAS. I SEE QUITE A FEW COMPLAINTS ALREADY CONCERNING THIS AND/OR DESCRIBING JUST ABOUT THE SAME ORDEAL. DAILY - BUT RANDOM - CITY AND HIGHWAY, TURNING, STRAIGHT ETC. BASICALLY ANY SITUATION BUT IDLE.

Mileage: 23

VEHICLE STALLS SOMETIMES WHEN I STOP. SE LIGHT IS NOW ON. SERVICE BRAKE ASSIST COMES ON NOW. TRUCK SURGES AND SHUTTERS AND IS ANNOYINGLY HUNTING FOR GEARS AND CAN'T FIND THEM. SLUGGISH THROTTLE LIKE I'M TRYING TO PULL A BULL DOZER OUT OF THE MUD. THIS MOSTLY HAPPENS BETWEEN 15 AND 40 MPH BACK ROADS AND HIGHWAY STOP-N-GO. NOT SETTLING FOR THE "OH THAT'S NORMAL" BSHT. SHOULD HAVE BOUGHT A FORD F150. TIME FOR A TRADE IN. 10K MILES AND I AM COMPLETELY DISGUSTED WITH CHEVY NOW. ALL I CAN SAY IS GOOD LUCK IF YOU HAVE A 2016 COLORADO.

Mileage: 6,000

THE TRANSMISSION HESITATES WHILE TRYING TO FIND THE CORRECT GEAR..I SPOKE TO A MAINTENANCE REP AT THE DEALERSHIP WHERE I BOUGHT MY TRUCK AND HE SAID THAT THE ENGINEERS MADE THE TRUCK THAT WAY FOR FUEL EFFICIENCY. HE ALSO TOLD ME TO JUST FLOOR THE ACCELERATOR TO GET POWER WHEN I NEED IT. IT STILL HESITATES EVEN WHEN I FLOOR IT AND HOW DOES THAT HELP FUEL EFFICIENCY? HE SAID IF A TECHNICAL SERVICE BULLETIN COMES OUT ON THIS ISSUE THAT I CAN BRING IN MY TRUCK AND THEY WILL FIX THE ISSUE. I AM SCARED TO PASS A VEHICLE UNLESS ABSOLUTELY NOTHING IS COMING FOR FEAR OF THE TIME IT TAKES FOR THE TRUCK TO FIND THE CORRECT GEAR. IT ALSO KIND OF JERKS WHEN IT DOES FIND THE RIGHT GEAR. THIS HAS BEEN GOING ON SINCE I PURCHASED IT IN JANUARY OF 2016.

ON 6/6/16 I STARTED HAVING THE TROUBLE. AFTER BACKING UP AND PUTTING THE TRUCK IN GEAR, THE TRUCK WOULD SURGE FORWARD WITHOUT TOUCHING THE GAS PEDAL. THIS ALSO OCCURRED ON 6/11/16, 6/17/16 AND 6/23/16. ON 6/23/16 I WAS AT SURDYKES PORT 20 MARINA AT THE LAKE OF THE OZARKS. AFTER BACKING OUT OF THE PARKING SPACE I PUT IT IN GEAR. THIS TIME IT WAS MUCH MORE THAN A SURGE. IT LITERALLY SHOT FORWARD AND EVEN THE BRAKES DIDN'T HELP BECAUSE WITHIN 3-4 SECONDS MY TRUCK AND I WERE IN THE LAKE. FINALLY GOT THE WINDOW TO BREAK SO I COULD ESCAPE. JUST BEFORE I WENT IN THE LAKE THE TRUCK STRUCK AN OLD GOLF CART AND JET SKI TRAILER THAT WERE PARKED THERE AND TOOK THEM INTO THE LAKE ALSO.

Mileage: 3,248

WHILE DRIVING THE COLORADO, THE TRANSMISSION GETS SO CONFUSED ON WHAT GEAR TO BE IN AND THE SHIFT PATTERNS ARE THE CRAZIEST I HAVE EVER EXPERIENCED. FROM 40-20MPH, STOP AND GO TRAFFIC, THIS TRUCK'S TRANSMISSION CLUNKS, SHIFTS HARD, STUTTERS AND CANNOT FIGURE OUT WHICH GEAR TO BE IN. IT'S VERY FRUSTRATING. NOT TO MENTION, WHEN TRYING TO PASS, THERE IS ZERO ACCELERATION FELT WHEN FLOORING THE PEDDLE. I AM SO FRUSTRATED WITH THIS TRANSMISSION AND MANY DAYS DURING THE TO AND FROM WORK COMMUTE, I FEEL AS IF I AM GOING TO GET REAR-ENDED BECAUSE OF THIS TRANSMISSION. IT'S ANNOYING WHEN DRIVING BUT STRESSFUL AS WELL, BECAUSE I FEEL AS IF MY SAFETY IS IN JEOPARDY DUE TO THIS "LEARNING" TRANSMISSION. IT'S SO DISAPPOINTING.

Mileage: 3,000

--- "THE TRANSMISSION DOES NOT DOWNSHIFT FROM A HIGH GEAR (5 OR 6) TO A LOWER GEAR WHEN SLOWING DOWN FROM 45 MPH TO 20 MPH (OR LOWER). WHEN THE ACCELERATOR IS DEPRESSED TO ACCELERATE THE ENGINE BUCKS, VIBRATES, AND DOES NOT ACCELERATE. THE ENGINE RPM DROPS TO 1,000 RPM OR LOWER. IF THE ACCELERATOR IS QUICKLY FLOORED THE TRANSMISSION DOWNSHIFTS SEVERAL GEARS LOWER AND JERKS FORWARD. THIS CONDITION HAPPENS PRIMARILY ON SECONDARY ROADS WHILE DRIVING ALONG THE ROAD AND WHEN PULLING FROM ONE ROAD INTO TRAFFIC ON ANOTHER ROAD. THE SITUATION WHEN PULLING INTO TRAFFIC IS DANGEROUS BECAUSE THE TRUCK DOES NOT ACCELERATE AS IT SHOULD. THIS TRUCK WAS PURCHASED NEW AND HAS 1,500 MILES ON IT. THIS CONDITION HAS BEEN PRESENT SINCE THE TRUCK WAS NEW AND THE SEVERITY VARIES WITH TRUCK SPEED AND ROAD INCLINATION. THE SITUATION HAS BEEN REPORTED TO THE DEALER AND TO CHEVROLET CUSTOMER SERVICE. NO CORRECTIVE ACTIONS HAVE YET TO BE MADE."

Mileage: 1,500

WHEN MERGING ONTO I-70 FREEWAY FROM ON-RAMP, I APPLIED THROTTLE TO MOVE INTO THE TRAFFIC FLOW. ENGINE "STUMBLED" AS IF IN A DEAD SPOT. TRUCK DID NOT ACCELERATE AND APPEARED TO BE LUGGING BADLY. TRANSMISSION WAS IN TOO HIGH A GEAR AND SEEMED TO BE SEARCHING FOR CORRECT GEAR. DURING THIS TIME ONCOMING TRAFFIC WAS FORCED TO BRAKE AND THERE WAS A NEAR MISS OF HAVING A REAR-END COLLISION. ALL I COULD DO WAS WATCH IN THE REAR VIEW MIRROR AS TRAFFIC CONVERGED ON ME. THIS "DEAD THROTTLE / WRONG GEAR" ISSUE HAS HAPPENED REPEATEDLY ON SURFACE STREETS BUT LUCKILY ON SURFACE STREETS I WAS NOT IN SUCH A CRITICAL SITUATION. THIS IS A PROBLEM THAT HAS BEEN REPORTED REPEATEDLY AND AT MANY PLACES ON THE INTERNET. WHEN WILL NHTSA FORCE GM TO ADDRESS THIS ISSUE? HOPEFULLY YOU WILL ACT BEFORE THIS RESULTS IN SERIOUS INJURY OR FATALITIES (IF IT ALREADY HAS NOT). PLEASE ACT!

Mileage: 1,700

ENGINE SEEMS TO LAG UNDER QUICK ACCELERATION. PROBLEM OCCURS MOST OFTEN WHEN ACCELERATING FROM A TURN OR WHEN CHANGING LANES UNDER ACCELERATION. SPEEDS OF OCCURRENCE MOSTLY APPROXIMATELY 20-25 MPH. REQUESTED CHECKS AND SERVICE AT A DEALERSHIP ONLY TO BE GIVEN A SERVICE BULLETIN FROM GM STATING THIS WAS A NORMAL PART OF THE TRACTION MANAGEMENT SYSTEM. MY PREVIOUS VEHICLE (2014 SILVERADO) WAS ALSO LISTED ON THE BULLETIN, BUT THE PROBLEM WAS NEVER NOTICED ON THIS VEHICLE. I SEE THIS ISSUE AS AN INCREASED RISK OF A COLLISION WITH THE HIGHEST RISK BEING A REAR END COLLISION. THIS NEEDS TO BE ADDRESSED AND FIXED.

Mileage: 25

THE TRANSMISSION DOES NOT DOWNSHIFT FROM A HIGH GEAR (5 OR 6) TO A LOWER GEAR WHEN SLOWING DOWN FROM 45 MPH TO 20 MPH (OR LOWER). WHEN THE ACCELERATOR IS DEPRESSED TO ACCELERATE THE ENGINE BUCKS, VIBRATES, AND DOES NOT ACCELERATE. THE ENGINE RPM DROPS TO 1,000 RPM OR LOWER. IF THE ACCELERATOR IS QUICKLY FLOORED THE TRANSMISSION DOWNSHIFTS SEVERAL GEARS LOWER AND JERKS FORWARD. THIS CONDITION HAPPENS PRIMARILY ON SECONDARY ROADS WHILE DRIVING ALONG THE ROAD AND WHEN PULLING FROM ONE ROAD INTO TRAFFIC ON ANOTHER ROAD. THE SITUATION WHEN PULLING INTO TRAFFIC IS DANGEROUS BECAUSE THE TRUCK DOES NOT ACCELERATE AS IT SHOULD. THIS TRUCK WAS PURCHASED NEW AND HAS 6,500 MILES ON IT. THIS CONDITION HAS BEEN PRESENT SINCE THE TRUCK WAS NEW AND THE SEVERITY VARIES WITH TRUCK SPEED AND ROAD INCLINATION. THE SITUATION HAS BEEN REPORTED TO THE DEALER AND TO CHEVROLET CUSTOMER SERVICE. NO CORRECTIVE ACTIONS HAVE YET TO BE MADE.

Mileage: 6,500

WHILE DRIVING THE VEHICLE OVER 40+ MPH AND THEN REDUCING SPEED DUE TO TRAFFIC TO 20 MPH, AND THEN ACCELERATING THE ENGINE AGAIN BETWEEN 21-28 MPH IT SEEMS TO BOG DOWN THE ENGINE ALMOST AS IF THE TRANSMISSION SHIFTS INTO TO LOW OR HIGH OF A GEAR AND MAKES THE VEHICLE FEEL LIKE IT'S BUCKING/JERKING WHEN TRYING TO ACCELERATE BETWEEN 21-28 MPH AND THEN A BURST OF SPEED. VEHICLE DOES IT ALL THE TIME BETWEEN THESE SPEEDS. VEHICLE WAS BOUGHT BRAND NEW HAD IT CUSTOM ORDERED AND ONLY HAD 9 MILES ON IT SO I KNOW IT'S NOT A ISSUE FROM SOMEONE ELSE DRIVING IT VEHICLE CURRENTLY HAS 1,200 MILES IS A V-6 CREW CAB

Mileage: 1,190

DRIVING AT ABOUT 60 MILES A HOUR AND LOST ALL POWER ENGINE WAS RUNNING BUT GOING NO WERE ALL LIGHT WERE LITE ON DASH LIKE YOU TURN KEY ON BEFORE STARTING THANK GOD NO ONE WAS COMING THE OTHER WAY OR THE CAR BEHIND ME WOULD HAVE HIT ME. HE WAS A GOOD DRIVER. SHUT IT OFF AND RESTARTED IT THEN IT WOULD RUN WITH ALL LIGHT ON DASH EVEN BRAKE LIGHT AND ANTI SKID LIGHT AND IT SAID ON INFRO. RUNNING AT REDUCED SPEED. DROVE TO MY HOME A SLOW SPEED IT LET ME. SHUT IT DOWN LET IT SIT A FEW MIN. RESTARTED IT STILL THE SAME. SHUT IT DOWN FOR ABOUT TEN MIM. RESTARTED IT. SEEM TO RUN OK BUT CHECK ENGINE LIGHT IS TILL ON NOW I AFRAID THE WILL JUST RESET IT AND SAY IT IS OK. AND NEXT TIME I WON'T BE SO LUCKY. IT HAS 5500 MILES ON IT. I DID SEE MY LIFE BEFORE MY EYES HOPPING IT DOSE NOT HAPPEN TO OTHERS. TAKING DEALER TOMORROW IT HAPPEN AT ABOUT 5PM 3/24/2016

Mileage: 5,500

TRANSMISSION DOES NOT DOWNSHIFT PROPERLY FROM UPPER GEARS (5,6) TO LOWER RANGE WHEN DECELERATING FROM 40 + MPH TO UNDER 20 MPH. VEHICLE WILL EXHIBIT LOSS OF POWER FROM BEING IN TOO HIGH OF A GEAR RANGE, CAUSING "CHUGGING", AND THEN A SUDDEN BURST OF POWER AS YOU TRY TO ACCELERATE. DEALER RESET ECM FOR TRANSMISSION; PROBLEM PERSISTS. TYPICALLY OCCURS ON RESIDENTIAL OR NON-FREEWAY STREETS, BUT HAS HAPPENED ENTERING A FREEWAY ENTRANCE RAMP.

Mileage: 1,300