2017 CHEVROLET COLORADO Power Train Problems

The contact owns a 2017 Chevrolet Colorado. The contact stated while driving at various speeds, the vehicle lost automotive power. The vehicle was towed to an independent mechanic where it was diagnosed and determined that the transmission needed to be replaced. The vehicle was repaired. The contact stated that on another occasion while driving 55 MPH, the brake pedal was depressed; however, the vehicle was slower to stop than normal. The vehicle was taken to an independent mechanic to be diagnosed and it was determined that the brake booster pump needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was unknown.

The contact owns a 2017 Chevrolet Colorado. The contact stated while driving at an undisclosed speed, the transmission converter clutch was shuddering. The contact stated that the failure persisted. There were no warning lights illuminated. The vehicle was taken to the local dealer where it was diagnosed that the torque converter and a fluid change were needed. The vehicle was not repaired. The manufacturer was contacted and offered to assist with the cost of the repair. The failure mileage was approximately 38,000.

Mileage: 38,000

The contact owns a 2017 Chevrolet Colorado. The contact stated while driving at an undisclosed speed, the transmission converter clutch was shuddering. The contact stated that the failure persisted. There were no warning lights illuminated. The vehicle was taken to the local dealer where it was diagnosed that the torque converter and a fluid change were needed. The vehicle was not repaired. The manufacturer was contacted and offered to assist with the cost of the repair. The failure mileage was approximately 38,000.

Mileage: 38,000

DESCONOCIDO. El volante se puso duro cuando me echaba de reversa para estacionar,

My son was driving the vehicle when it lost power and he had to maneauver to the side of the road putting himself and others in danger. The truck was not able to drive forward, but could only drive in reverse. There were no warning lights or other indications that the vehicle had a problem. I had it towed to a mechanic who said Chevy Colorados have problems with their transmissions and it would need to be replaced.

Transmission is slipping, vibrating, jerking. Bought the truck used. It started on 12/28/2023. There is no open recall or anything.

The contact owns a 2017 Chevrolet Colorado. The contact stated while driving 30 MPH, the vehicle briefly shuddered before returning to normal functionality. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was notified of the failure but referred the contact to the NHTSA hotline for assistance. The failure mileage was 32,500.

Mileage: 32,500

Purchased vehicle new in 2017 with 14 miles. In June 2018 at 17,500 miles vehicle developed a sever transmission shudder. Took the vehicle to the Chevrolet dealership where purchased. They replaced the transmission fluid and torque converter. Now, in July 2023 at 79,000 the transmission shudder has returned. This shudder affects my ability to control the car’s speed, acceleration, and deceleration and increases the risk of collision. Took the vehicle back to a dealership. They now recommend a full transmission replacement at $5,900. They will cover only $237 of the cost since the vehicle is past 5 years and 60,000 miles.

8 Speed transmission slipped as I was going around a corner causing my 2017 Colorado stop suddenly causing the cars behind my to swerve to avoid me. Then the excellerator linkage or something caused the engine to rev out of control when the transmission finally stopped slipping causing me to run the truck off the road. This slip and then uncontrolable exeleration has occured 3 times since I bought it, This truck is a LEMON!

From a stop, accelerating has occasionally caused transmission to shudder, limiting power and ability to follow traffic until transmission reengages and power is restored. This creates an unnatural traffic pattern and puts myself at risk. After much research it appears the problem is with the transmission and torque converter. The engine may produce more torque than the transmission can handle. Problem started out infrequently, but has increased in frequency over time. Please reference report #11449007

The contact owns a 2017 Chevrolet Colorado. The contact stated that while driving at 55 MPH, the vehicle inadvertently downshifted before returning to normal functionality. Since the failure was first experienced, the failure became a regular failure. The check engine warning light was illuminated during the failure. The vehicle was taken to the dealer, who determined that a transmission fluid flush was required. The vehicle was repaired, but the failure reoccurred. The manufacturer was not notified of the failure. The failure mileage was 55,000

Mileage: 55,000

There is an active service bulletin for 2017 Chevy Colorados. My vin does not fall under that service bulletin. I started two case numbers with Chevy. My truck is in the shop for ref service bulletin # 18-NA-355. Same problem and the same fix. Mine got so bad the control arms need replaced. Please add my vin to the service bulletin so Chevy will take responsibility for their manufacturing mess up. Thank you.

My vehicle shutters on highway. I was told by a few Chevy representatives that they would help fix it even though it’s out of warranty. This is a known problem across the USA and they should fix it at no charge to customer.

The oil coolant line has just failed for a second time in two years on our 2017 Chevy Colorado that only has 50,000 on it. In both cases I was driving down the road and the line ruptured and alarms started going off to shut the engine off. This is very dangerous to have to immediately stop in the middle of the road and then left stranded (especially in the middle of a cold MN winter). The first time this happened the vehicle was under warranty and our dealer towed and fixed the vehicle. The second time, it is just 8 months past the warranty time (still under the warranty mileage limit). This is now a $1200 repair for something that should not be happening any way. This is a known, common issue with GM and they are doing nothing to solve this problem - or even warn their customers of this safety issue. Two catastrophic failures of an essential drive train component in a vehicle with 50,000 miles? Also in both cases there was no warning of any kind before it happened. No warning lights or symptoms. It just all of a sudden blew both times and left me stranded on the road.

My car was shuddering (almost like the wheels didn't have enough power) and it felt like I was going over a rumble strip. After some research I found out that Chevrolet knew of this problem and acknowledged it in a service bulletin in 2018. The problem was that the transmission oil Chevrolet had used was failing and needed to be replaced. The oil Chevy had in there was causing the Torque Converter Clutch (TCC) to Shudder or slip. Chevrolet never notified its customers because they said this would not harm the truck. However they're wrong, if the transmission does not have the right oil and is causing the TCC to slip, this inevitably would ruin the clutch and thus is a manufacturing default and should be replaced at no cost by Chevy. The newest service bulletin on this problem is N0: 18-NA-355 (https://static.nhtsa.gov/odi/tsbs/2019/MC-10163890-9999.pdf) Chevrolet said this was not covered by a warranty and wanted me to pay $500 to fix their mistake of putting in faulty oil in my truck. They then offered me to pay $80 . They also refuse to extend my warranty and cover the remaining $80. This is a safety problem because it could cause the transmission to seize up if not fixed. Because this has been well documented in many other customer cars, I believe they should be forced to Recall and notify all customers and pay for this procedure. My car was inspected and flushed by car dealer (Chuck Olsen Chevrolet in Shoreline WA). There were no warning lamps, or messages. It failed why I was driving on a two hour road trip. The rumbling was so noticeable I initially thought my wheel was falling off so pulled over to make sure my tire still had all of it's bolts. Turns out the fluid Chevy used in my transmission was to blame. In the owners manual it says you should flush your transmission at 72,000 miles. My truck only has 58,000 miles.

In March of 2021 purchased a used Chevy Colorado from Jake Sweeney Automotive Group in Cincinnati Ohio. The vehicle seemed very sound, but over time a rumbling sound was starting to take over the cab of the truck. I felt it was coming from the rear end of the truck. I took the vehicle into an independent mechanic. They removed the tires to make sure it was not the brakes. They ended up telling me where I thought the sound could be coming from was the differential. They could not tell me exactly what was wrong without tearing the differential apart. I took the vehicle back to Jake Sweeney Service in Lebanon Ohio because this Service Center was closer for service. After their service inspected the vehicle they determined it was an issue with the differential. Again, they could not tell me exactly what was wrong until they tore into it. The independant mechanic gave me a text on GM-Techlink.com that indicates GM is having issues with this type of differential. After some arguement with Service Tech and Manager of Service Department. They agreed to cover 25 per cent of the of the work done to make differential right. I was not in agreement with this due to it is a GM problem. I made contact with GM to complain to them of their issues with the differentials on these vehicles. After a couple months of talking to the claims writer. A supervisor called me to inform me they would cover 25 per cent of the cost to repair the vehicle. Again, I was not in agreement with GM only covering 25 per cent of the cost when GM has an issue with these differentials. It looks from reading the GM-Techlink.com GM is aware of 2017-2019 differentials in the Colorado and GMC Canyon models causing the whining, growling and grinding sound. The link indicates there is a machining issue on the surface of the carrier bearing bore. I understand, I have put miles on this vehicle before I was aware of this issue. But my feeling is GM has put an unsafe and faulty vehicle on the road.

The contact owns a 2017 Chevrolet Colorado. The contact stated that on numerous occasions while accelerating at low speeds, the vehicle shuddered and jerked. No warning light was illuminated. The vehicle was taken to the dealer where the failure could not be duplicated. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 30,000.

Mileage: 30,000

Vehicle vibrates and/or shudders during light throttle acceleration at a steady state, promoting a driver to accelerate quickly to overcome the disconcerting shudder. This definitely should be a safety recall as GM has acknowledged the problem in a Technical Service Bulletin #19-NA-018, prevalent in many models & brands including Cadillac, Chevrolet & GMC (even Corvettes 2015-2019 models). Suggested repair is for dealer to fill & flush transmission pan 3 times(!) with 7 liters of Synthetic LV ATF HP fluid. Other complaints on this site question the effectiveness of this repair citing recurrence of shudder. Very disturbing & unsafe condition.

The contact owns a 2017 Chevrolet Colorado. The contact stated that the transmission was shuddering while depressing the accelerator pedal. There was no warning light illuminated. The vehicle was taken to the dealer and was diagnosed with a defective torque converter. The torque converter was replaced under warranty; however, after several thousand miles the failure returned. The dealer was notified of the failure and informed the contact that the vehicle was now out of warranty. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 52,000.

Mileage: 52,000

Transmission is shuddering and bucking during acceleration and deceleration while driving. Recommended transmission flush and fluid replaced completed 4 months ago and problem still persists.

The transmission locked up while I was on the freeway and refused to go over 40 mph. Multiple dash warning lights came on. This is after the truck has had long term transmission issues that the dealership is not repairing.

The vehicle stopped engaging in park and unable to remove key. This is a known issue with GM, and the shifter assembly has to be replaced which is NOT covered under the power train warranty. This is a serious safety issue.

I have had this complaint before and previously lodged a complaint about the transmission. First time at the dealership, they said they couldn't feel any of the shuttering I was talking about. Second time they ended up doing a transmission flush. It felt exactly the same and seemed to get worse. Third time they said there was nothing they could do. Suggested I run the truck in tow mode. That was better for a short time. Dont know what to do now. Second complaint is the back up camera. Can bearly see out of it no matter how clean I get the camera. Asked dealership if the was any recalls on it they said no but told me they had so many complaints about it. Would seem to be a factory defect but what do I know

Hard shifting, missed shifts, shudder from TQ converter. For six months the vehicle has been shifting had at random times during shift sequences. Hard shifts occur on both moderate acceleration and hard acceleration. Shifts can only be described as sudden and violent, feeling something like a U-joint failure, broken transmission mount, or a clutch slipping and then slamming into gear. The hard shifts occur and any speed and any gear, but are very noticeable around 3rd / 4th. The TQ converter slips on acceleration only. Has been in the dealer 3 times for a total of 7 days so far with one technician claiming it needs a new TQ converter and possibly a new transmission. Other techs claim they can't find the problem. No codes, no lights. Dealer claims they can feel the problem but have failed to diagnose it. Failure of this could pose to be a serious safety issue if it happens at highway speed in traffic. GM has the inventory of 6L50 transmissions on lockdown.

There is an uncontrollable shaking in the driveline when driving at low rpms regardless of speed.

The contact owns a 2017 Chevrolet Colorado. The contact stated while driving 50 MPH, the vehicle downshifted into first gear and failed to exceed 10 MPH. The contact stated no warning light was illuminated. The contact was able to drive to the residence at a slow speed. The contact took the vehicle to an independent mechanic and was unable to duplicate the failure. The contact stated that the failure was experienced for a second time on 11/8/2021. The contact stated that the transmission warning light was illuminated. The vehicle was not diagnosed or repaired. A dealer was not contacted. The manufacturer was not informed of the failure. The failure mileage was 57,643.

Mileage: 57,643

2017 Colorado All of a sudden I was just driving down the road going 55mph, and my truck shut off. No warning light just died completely. I almost got rear-ended by the car behind me. I could not start the truck back up at all. If I had been in construction zone someone could have seriously got injured or killed, Huge safety issue. I had the truck towed to the chevy dealer, it took the sever days to find out the issue. The wiring harness behind the motor, was rubbing on the fire wall, causing several wires to become exposed and short out. Dealer even if they put a new wiring harness back in it would have the same problem, based off where it is located. I trying to make sure no one gets killed and recall issued. I contacted chevy customer support they didn't seam interested is fixing a safety issue, no there problem after warranty are over.

My key gets stuck intermittingly in the ignition and will not turn off. There is a current bulletin (#PI1429B) on this issue. In order to be safe and leave the car, I need to be able to turn it off.

The contact owns a 2017 Chevrolet Colorado. The contact stated while driving approximately 40 mph, the vehicle jerked back and forth while shifting gears. The contact stated no warning lights was illuminated. The vehicle was diagnosed but not yet repaired. The manufacturer was informed of the failure and advised the contact to have the vehicle diagnosed by an authorized dealer. The failure mileage was approximately 84,437.

Mileage: 84,437

The contact owns a 2017 Chevrolet Colorado. The contact stated that at low speeds of 20-60 mph, the vehicle failed to accelerate with the accelerator pedal depressed. The vehicle started to shudder as the power train warning light illuminated. The vehicle was taken to the dealer and was diagnosed that the torque converter sensor failed and needed to be replaced. The vehicle was not repaired however, the transmission fluid was replaced. The manufacturer was notified of the failure and informed the contact to take the vehicle back to the dealer. The vehicle was taken back to the dealer and was test-driven however, the mechanic informed the contact that the failure would continue if the torque sensor was not replaced. The failure mileage was approximately 71,900.

Mileage: 71,900

The contact owns a 2017 Chevrolet Colorado. The contact stated that his vehicle would shutter upon the depression of the accelerator pedal without warning. The manufacturer was notified of the failure and informed the contact that the vehicle was out of warranty and referred him to a dealer for assistance. The contact had yet to take the vehicle to be serviced or diagnosed for the failure. The failure mileage was 60,000.

Mileage: 60,000

Vibration and shimmy of vehicle while driving. The entire truck shakes about every 10-20 seconds. Brought the truck in twice in for the company to fix and they do not understand or recognize the problem. Still not fixed and the North Branch Chevy dealership will not stand behind the warranty or repair.

THIS IS THE THIRD TIME I HAVE HAD IT TO THE DEALERSHIP THIS TIME. THE FIRST TIME I WAS TOLD THERE WAS NOTHING WRONG WITH IT. THE SECOND TIME, THEY REPLACED THE TORQUE CONVERTER. THIS TIME THEY ACKNOWLEDGED A PROBLEM AGAIN AND AND SAID GM ISSUED A TECHNICAL SERVICE BULLETIN TO ADDRESS THIS. I HOPE THIS REPAIR WORKS THIS TIME. BUT MY CONCERN IS, HAVING BEEN REPAIRED BEFORE, HOW LONG WILL THIS REPAIR LAST, AND 2) WILL IT LAST TILL THE POWERTRAIN WARRANTY HAS EXPIRED? HAVING LOOKED THROUGH THIS LIST SINCE THE FIRST PROBLEM IN 2018, I HAVE SOME MAJOR CONCERNS WITH THE 8 SPEED TRANSMISSION IN THIS TRUCK. GM NEEDS TO ADDRESS THIS BY ISSUING A RECALL OR EXTENDING THE POWERTRAIN WARRANTY ON THIS MODEL. I NEED THIS VEHICLE TO LAST AND RIGHT NOW IT DOESNT LOOK GOOD.

Mileage: 18,625

HAVE A LOT OF DIFFICULTY GETTING THE SEATBELT TO LOCK INTO PLACE. ONCE VEHICLE IS PLACED IN PARK, THE KEY WILL NOT ROTATE TO THE OFF POSITION AND CANNOT REMOVE IT.

Mileage: 28,000

THE INSTRUMENT PANEL DOES NOT RESPOND TO TOUCH THIS STOPPED WORKING AT 19000 MILES. I'VE RESET THE SYSTEM DISCONNECTED THE BATTERY, STILL DOESN'T WORK. CURRENT MILEAGE IS 32000 STILL DOES NOT WORK. THE TRANSMISSION SHIFTS VERY HARD AND SEEMS TO BE SLIPPING, SEEMS TO BE HAVING TROUBLE FINDING THE NEXT GREAT THEN HAS HARD FEELING OF UPSHOT THEN DOWN SHIFTS.

Mileage: 12,000

I NOTICED LOUD CREAKING NOISES ON THE DRIVER'S SIDE OF MY TRUCK PRIMARILY WHEN CORNERING AND GOING OVER BUMPS. I ASKED FERMAN CHEVROLET (9751 E ADAMO DR, TAMPA, FL 33619) TO CHECK IT OUT FOR ME. THEY FOUND THAT 2 TRANSMISSION BOLTS WERE MISSING, WHICH THEY ATTRIBUTE TO THE NOISE. I'M NOT SURE IF THIS IS SOMETHING THAT OCCURRED RESULTING FROM POOR MANUFACTURING BUT IT SEEMS THAT THIS IS NOT SOMETHING THAT COULD/SHOULD HAVE OCCURRED THROUGH NORMAL USE (DRIVING ON CITY ROADS ONLY ABOUT 50 TO 100 MILES PER WEEK) ON A 4 YEAR OLD VEHICLE WITH ONLY 30650 MILES ON IT. I LOOKED FOR RECALLS FOR MISSING TRANSMISSION BOLTS FOR GM PRODUCTS AND FOUND THAT THERE IS ONE THAT IS POSSIBLY A SIMILAR ISSUE ALTHOUGH ONLY FOR CERTAIN FRONT WHEEL DRIVE MODELS; N202313440.

Mileage: 30,000

FIRST ITEM: WHEN TRUCK IS PUT INTO PARK, THE STEERING WHEEL LOCKS UP AND THE KEY IS NOT ABLE TO BE TAKEN OUT OF THE STARTER SLOT. SECOND ITEM: THE POWER STEERING STOPS WORKING. THE STEERING MOTOR WAS REMOVED & REPLACED ON FEB. OF 2020.

Mileage: 27,601

TL* THE CONTACT OWNS A 2017 CHEVROLET COLORADO. THE CONTACT STATED THAT THE TRANSMISSION FAILED. THE CONTACT STATED THAT WHILE SHIFTING GEARS THE TRANSMISSION SHIFTED HARD, SLAMMED, AND MADE CLUNKING NOISE WHILE SHIFTING TO PARK, REVERSE OR DRIVE. THE CONTACT STATED THAT THE FAILURE OCCURRED WHENEVER THE TEMPERATURE WAS AT 30 DEGREES OR LOWER. THE VEHICLE WAS TAKEN TO CLASSIC CHEVROLET (6877 CENTER STREET, MENTOR, OH 44060, (440) 953-1070) FOR DIAGNOSTIC TESTING. THE DEALER ADVISED THE CONTACT THAT THE TRANSMISSION GEAR FAILURE WAS A CHARACTERISTIC OF THE VEHICLE AND THERE WAS NOTHING WRONG WITH THE VEHICLE. THE DEALER ALSO PROVIDED THE CONTACT WITH A TECHNICAL SERVICE BULLETIN THAT REFERENCED THE TRANSMISSION ISSUES. THE MANUFACTURER WAS CONTACTED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 18,466.

Mileage: 18,466

WHEN DRIVING TRANSMISSION SHIFTING PROBLEMS, SUDDENLY CHANGING GEARS. JUST A FEW, I TOOK THE TRUCK TO THE DEALER ON 1/14/2021, FOR AN OIL CHANGE AND THE DEALER CHECKS THE ENGINE COOLING SYSTEM OK AND EVERYTHING ELSE, I BEEN TAKING THE TRUCK TO THE DEALER FOR MANY YEARS FOR SERVICE AND THEY TOLD ME NO RECALLS, DAYS AGO DRIVING HOME ABOUT 5 MINUTES BEFORE GETTING HOME THE TEMPERATURE GAUGE WHEN TOO COOL AND THE RADIATOR FANS WERE IN HIGH SPINNING WHEN GOT HOME SHUT IT OFF, BUT THE FAN WAS STILL GOING ON, I WILL CALL THE DEALER ON MONDAY 01.25.2021 FOR SERVICE AND TOWING THE TRUCK TO THE DEALER TO FIX IT. HOW MUCH IS GOING TO COST ME NO IDEA, IN THE MEANTIME I WILL RENT A CAR WHILE FIXING THE TRUCK.

Mileage: 5

ON THE HIGHWAY WHEN ACCELERATING UPHILL THERE IS A CLUNKING SOUND. IT FEELS LIKE IT'S THE GEARS ARE SLIPPING. ONLY 15,000 MILES ON IT HE TRUCK.

WHILE DRIVING MY CHEVY COLORADO TODAY, I NOTICED THERE WAS SEVERAL TIMES IT WOULD SHUDDER WHEN ACCELERATING, AND GOING UP HILLS. THIS OCCURRED WHILE DRIVING 40MPH - 60 MPH. IT FEELS LIKE I'M GOING OVER RUMBLE STRIPS WHILE DRIVING. I WILL BE CONTACTING THE DEALER AND TRY TO GET THIS ISSUE FIXED.

Mileage: 45,200

HAVE HAD ISSUES WITH TRANSMISSION SINCE I BOUGHT THE TRUCK. IT CONTINUES TO DO THE SAME THING ,AND IT SEEMS TO BE GETTING WORSE.IHAD IT IN FOR THE PROBLEM AND THEY SAY ALL THE SHIFT POINTS ARE RIGHT AND SAME SAYS ONSTAR.WENT ONLINE THIS MORNING AND IT SEEMS ITS THE 8 SPEED TRANS ,WHICH IS WHAT I HAVE.WHAT ARE MY OPTIONS WITH DEALER ? CAN I GET IN ON THE CLASS ACTION LAWSUIT?07

Mileage: 10,000

TL* THE CONTACT OWNS A 2017 CHEVROLET COLORADO. THE CONTACT STATED THAT WHILE DRIVING AT SLOW SPEEDS, THE TRANSMISSION DOWNSHIFTED WITHOUT WARNING. THE CONTACT ALSO STATED THAT WHILE TRAVELING AT A HIGH RATE OF SPEED, THE STEERING WHEEL VIBRATED ABNORMALLY WITHOUT WARNING. THE CONTACT TOOK THE VEHICLE TO CHUCK HUTTON CHEVROLET (2471 MT MORIAH RD, MEMPHIS, TN 38115) WHERE THE MECHANIC WAS UNABLE TO DUPLICATE THE FAILURE. AFTER THE FAILURE PERSISTED, THE CONTACT TOOK THE VEHICLE TO JIM KERAS CHEVROLET (2000 COVINGTON PIKE, MEMPHIS, TN 38128) WHERE THE TRANSMISSION FLUID WAS FLUSHED AND TEMPORARILY CORRECTED THE FAILURE HOWEVER, THE FAILURE REOCCURRED AFTER SEVERAL THOUSAND MILES. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 21,000.

Mileage: 21,000

MY 2017, COLORADO 2 WD, 33,000 MILES, BEGAN TO RUMBLE, INTERMITTENTLY AT HWY CRUISING SPEEDS. IT FEELS AND SOUNDS AS IF I'M DRIVING OVER HWY RUMBLE BARS. RUMBLING STOPS AS SOON AS I TAKE MY FOOT OF THE ACCELERATOR. THIS PHENOMENON BEGAN AS AN OCCASIONAL ANNOYANCE BUT HAS INCREASED SIGNIFICANT TO A DAILY EVENT. I'VE SCHEDULED A TRANSMISSION FLUID CHANGE WITH THE DEALER IN TWO DAYS.

Mileage: 33,000

TORQUE CONVERTER CLUTCH 'SHUDDER' AT LOADED STEADY SPEED AND ACCELERATION - VIBRATION FELT IN ENTIRE CABIN @ 15,560 MILES. NON-EXISTENT WHILE COASTING/OFF-THROTTLE. PREVALENT WHEN DRIVETRAIN IS FULLY WARMED UP & ON HIGHWAY. EXTREMELY ANNOYING.

Mileage: 15,000

TRANSMISSION: MY VEHICLE WAS MAKING A SOUND, AS IF SOMETHING WAS RUBBING. CALLED DEALER FROM WHERE I PURCHASED IT AND THEY REPLACED THE TRANSMISSION FLUID. I'M NOT COMFORTABLE WITH JUST REPLACING THE TRANSMISSION FLUID. HOPING TO NOT HAVE SOMETHING ELSE GOING ON WITH TRANSMISSION. THEY REPLACED THE TRANSMISSION FLUID WITH A DIFFERENT TYPE OF TRANSMISSION FLUID. I HAD JUST ENTERED INTERSTATE 81, WHEN THE RUNBBING SOUND, STARTED TO OCCUR. THE SERVICE ADVISOR TOLD ME THE TRANSMISSION FLUID THAT WAS ORIGINALLY PUT IN WHEN IT WAS MANUFACTURED, WAS THE WRONG FLUID.

Mileage: 34,000

VERY HARD SHIFTING WHEN ACCELERATING FROM A STOP TRUCK SHIFTS REAL HARD AND JERKS STEERING WHEEL FROM MY HAND.(VERY DANGEROUS) SHUDDER AND HEAVY VIBRATION DURING ACCELERATING AT ANY SPEED. HEAVY CONSISTENT VIBRATION AT ANY HIGHWAY SPEED. I AM A HANDICAPPED DRIVER AND I AM AFRAID TO DRIVE THIS TRUCK. UNSAFE AT ANY SPEED.THIS IS NOT A ONE TIME OCCURRENCE AND HAS BEEN DOING THIS EVERY DAY FOR OVER A MONTH.

Mileage: 26,000

TRANSMISSION ISSUES. HAD IT LOOKED AT WHEN I HIT 10,500 MILES. THE DEALERSHIP SAID IT WAS A COMMON PROBLEM AND JUST PUT THICKER TRANSMISSION FLUID IN. HELPED THE PROBLEM. NOW AT 20,500 MILES IT'S STARTING TO VIBRATE AT SPEEDS ABOVE 45 MPH AGAIN.

Mileage: 20,450

TRANSMISSION/TORQUE CONVERTOR ISSUES CREATED JERKING/SHUDDER WHILE DRIVING AT SPEEDS OF 40 TO 70 MPH.

Mileage: 30,000

TRANSMISSION SHUDDERS AT ALL SPEEDS WHEN DRIVING AT LOW RPM'S. (LIKE GOING OVER RUMBLE STRIPS PERIODICALLY). ALSO OCCASIONALLY SHIFTS HARD FROM 1ST TO 2ND GEAR. I ASSUME IT'S THE TORQUE CONVERTER & FLUIDS BUT CHEVY WON'T FIX IT. IT NEEDS TO BE RECALLED ASAP!

Mileage: 76,000

TWICE IN SHOP FOR FAULTY MODULES. TRANSMISSION/TORQUE CONVERTOR ISSUES CREATED JERKING/SHUDDER WHILE DRIVING ON HIGHWAY AT SPEEDS OF 40 TO 70 MPH. WAS IN SHOP FOR OVER 15 DAYS TOTAL AND REPAIR WAS INEFFECTIVE 3 TIMES WITH ACKNOWLEDGING ISSUES AND TWICE WHERE A DIAGNOSTIC WAS RAN AND WAS TOLD NOTHING WAS WRONG. DEALERSHIPS IN THE BEGINNING YEARS AGO REPLACED THE TORQUE CONVERTOR WITH A PRICE OF $2000K. THIS WAS EXPENSIVE AND NOW THEY FLUSH THE TRANSMISSION 3 TIMES AT A COST OF $400.00 PER. GM HAS OFFERED THE ISSUE FOR AN EXTENDED WARRANTY FROM 3 YEARS TO 4 YEARS AND THE ORIGINAL 60 MONTH DRIVE TRAIN. I WANT A BUY BACK AS THIS PROBLEM IS NOT SOLVABLE FROM THE DEALERS STAND POINT OR IT WOULD HAVE BEEN RESOLVED TWO YEARS AGO. I HAVE SENT 10 PAGES OF SHOP RECORDS TO GMLEGAL AS PER THEIR REQUEST. *TR

Mileage: 5,862

I EXPERIENCE A VIBRATION AT THE FRONT OF MY TRUCK WHEN I ACCELERATED AT HIGHWAY SPEEDS. I WAS TOLD BY MY DEALERSHIP THAT I NEEDED NEW TRANSMISSION FLUID. THEY SAID THAT SHAVINGS GOT INTO THE FLUID. CAUSING THIS PROBLEM. I ASKED IF MY TRANSMISSION WAS DAMAGED AND THEY SAID NO. THEY WANTED ME TO USE THE CAR FOR 200 HUNDRED MILES AND REPORT BACK TO THEM IF THE PROBLEM PERSISTS. I HAVE DOUBTS THAT THIS IS GOING TO SOLVE THE PROBLEM. WHATEVER CONTAMINATED THE TRANSMISSION THE FIRST TIME WILL PROBABLY HAPPEN AGAIN. I WANT SOME PROTECTION IN CASE MY TRANSMISSION FAILS AFTER WARRANTY PERIOD ENDS. I CANNOT AFFORD THIS OUT OF POCKET REPAIR. I WAS NOT NOTIFIED BY CHEVY THAT THIS WAS A PROBLEM. I WAS GETTING AN OIL CHANGE AND MENTIONED TO THEM IF THEY WOULD CHECK OUT THE FRONT END OF THE TRUCK.. THEN THEY MENTIONED TO ME THAT THEIR WAS A SERVICE BULLETIN FROM CHEVY ABOUT THIS PROBLEM. WHY WASN'T I NOTIFIED ABOUT THIS PROBLEM?? REPAIR DATE, TRANSMISSION FLUID CHANGED 5/27/2020. *TR

Mileage: 10

TRANSMISSION ON THE 2017 CHEVY COLORADO Z71 SHIFTS VERY HARSH BETWEEN FIRST TO SECOND AN SHIFT HARSH FROM SECOND DOWN TO FIRST. THE TRUCK DID HAVE A TRANSMISSION FLUSH IN THE PASS IN 2019 DUE TO SHUDDERING IN SOME GEARS TRUCK CURRENTLY HAS 58,843 MILES. THE TRANSMISSION SHIFTS VERY HARSH WHEN UNDER LIGHT TO MODERATE ACCELERATION THE SHIFTING FEELS LIKE IT A KICK WHEN IT SHIFTS. *TR

Mileage: 50,000

VEHICLE STUDDERS AS IF GOING OVER SPEED BARS BETWEEN 40-70 MPH. SHIFTS HARD IN LOWER GEARS. BOUGHT NEW AND HAS BEEN DOING THIS SINCE DAY ONE.

Mileage: 5,000

TOUCH SCREEN STOPS WORKING AND GOES BLACK ALL THE TIME. ALSO HAVING TROUBLE WITH REMOVING THE KEY. SHIFT TRUCK INTO PARK GO TO TURN TRUCK OFF AND REMOVE KEY BUT KEY DOESN'T TURN ALL THE WAY. SO YOU HAVE TO RESTART THE TRUCK AND SLAM SHIFTER INTO PARK HARD FOR IT TO GO INTO PARK ALL THE WAY

Mileage: 50,000

WHOLE VEHICLE SHUTTERS WHEN ACCELERATING ANYWHERE BETWEEN 35 AND 75 MPH. THIS HAPPENS WHILE DRIVING STRAIGHT ON A CITY STREET OR HIGHWAY. IT IS EQUIVALENT TO RUNNING OVER RUMBLE BARS EVERY OTHER SECOND ON A COMPLETELY SMOOTH ROAD. THE TACHOMETER CAN ALSO BE SEEN JUMPING 100-200 RPMS DURING THE SHUTTERS.

Mileage: 12,000

CHEVY SHAKE!.. BEEN EXPERICING A HEAVY SHAKE/VIBRATION SPEEDS OVER 45MPH, IN CITY.. MORE SO ON HIGHWAY TRAVEL, LOOK UP SEVERAL COMPLAINTS ABOUT THE COLORADO AND ALL PRETTY MUCH HAVE THE SAME PROBLEM? GM DID NOT ISSUE A RECALL ON THESE TRUCKS..HOWEVER ITS OFF THE TWO YEAR WARRANTY. I DID DO RESEARCH ASSUME IT THE DRIVESHAFT, WHEEL BALANCE TRANSMISSION, THE LIST GOES ON. GM DEALERS KNOW OF THE,PROBLEM, BUT DECLINE TO FIX THE PROBLEM..IT SEEMS TO BE GETTING WORSE AS I DRIVE IT.

Mileage: 8,000

40+ MPH THE TRANSMISSION SOUNDS A RUMBLE STRIP AS DRIVING OVER

IT FEELS LIKE I AM RUNNING OVER RUMBLE STRIPS WHEN GOING 40-60 MPH AND LOW RPM. A BRIEF INTERNET SEARCH REVEALS THAT THIS IS A COMMON ISSUE THAT APPEARS TO BE RELATED TO THE TRANSMISSION. THE ISSUE BEGAN RECENTLY. I HAVE 40K COMMUTER MILES ON THE TRUCK.

Mileage: 40,000

TRANSMISSION SHUDDERS AND VIBRATES. HAPPENS USUALLY AROUND 55-60 MPH, AFTER THE FLUID REACHES ABOUT 80 DEGREES. HARD SHIFTING ALSO FROM FIRST TO SECOND GEAR. GM IS AWARE OF THIS PROBLEM YET CHOOSES TO DO NOTHING ABOUT IT. TRUCK IS OUT OF WARRANTY(40K) SO THEY WANT $400 TO FLUSH TRANSMISSION. IT'S A SHAME THAT GM WON'T STAND BEHIND THEIR PRODUCTS. WHEN WILL THEY BE HELD ACCOUNTABLE?

Mileage: 38,000

THE TRANSMISSION HAS LOCKED UP THE REAR WHEELS ON DE ACCELERATION/DOWNSHIFT CAUSING LOSS OF CONTROL. THIS HAS HAPPENED MULTIPLE TIMES AND HAS BEEN BROUGHT TO THE ATTENTION OF GM. THE TRUCK IS A SAFETY ISSUE AND NEEDS TO BE TAKEN OFF THE ROAD. GM RECOGNIZES THE TRANSMISSION IN THESE VEHICLES ARE HAVING MAJOR ISSUES BUT FAILS TO ADDRESS THE PROBLEMS.

Mileage: 58,000

TRANSMISSION SHUDDERS WHEN GOING DO THE ROAD. HAPPENS AT BOTH LOWER SPEEDS AND AT HIGHER SPEEDS IN TOWN AND ON THE INTERSTATE. HARD SHIFTING AS WELL WHEN VEHICLE IS NOT UP TO OPERATING TEMPERATURE.

Mileage: 30,697

TWICE NOW MY 2017 W/~41000 MILES HAS GONE INTO INSTANT, NO WARNING OR GRACE PERIOD, BUT AN INSTANT DROP TO A FORCED 10 MPH IN THE MIDDLE OF TRAFFIC, THIS LAST TIME ON A HIGHWAY WITH NO SHOULDERS DURING RUSH HOUR. THE THREE CODES THROWN THE FIRST TIME (I DON'T HAVE THE CODES FROM THE SECOND TIME BUT THE DEALER IS ORDERING A NEW ECM BASED ON THE U0401 CODE): RC (RADIO CONTROLS): B1325 - CONTROL MODULE POWER CIRCUIT - LOW VOLTAGE EBCM (ELECTRONIC BRAKE CONTROL MODULE): U0401 - INVALID DATA RECEIVED FROM ENGINE CONTROL MODULE - INVALID DATA ECM (ENGINE CONTROL MODULE) P200C DIESEL PARTICULATE FILTER (DPF) HIGH TEMPERATURE ALONG WITH THE CODES THE CHECK ENGINE, STABLITRAK, AND TRACTION CONTROL LIGHTS CAME ON - HOWEVER BRAKING WAS NOT AFFECTED! REGARDLESS, THIS PROGRAMMED 'LIMP' MODE IS INSANELY RECKLESS WITH TOTAL DISREGARD FOR THE SAFETY AND WELFARE OF THE VEHICLE OCCUPANTS, THERE IS ABSOLUTELY NO SAFE PLACE OR REASON TO DELIBERATELY CRIPPLE A VEHICLE WHILE IN TRAFFIC! SOME EUROPEAN MANUFACTURES AT LEAST GIVE YOU A WARNING WITH SEVERAL ENGINE RESTARTS TO LET YOU DRIVE NORMALLY TO SAFETY AND THEN A DEALER FOR SERVICE ' BUT APPARENTLY EMISSIONS LAWS IN THE US TAKE PRECEDENCE OVER HUMAN LIFE. LIMP MODE CAN BE DISABLED FOR EMERGENCY VEHICLES BUT THE DEALERSHIP TOLD ME IT WAS ILLEGAL FOR THEM TO DO IT FOR ME. THE DEALERSHIP HAS BEEN GREAT BUT LIMITED TO WHAT THEY CAN DO BECAUSE OF GM REQUIREMENTS. THEY ARE CURRENTLY LOOKING INTO THE PROBLEM AND HAS ORDERED A NEW ECM AS A SECOND PHASE IN TROUBLESHOOTING THE ISSUE (FIRST WAS REPROGRAMMING THE ECM) HOWEVER THERE IS STILL NO EXCUSE FOR FORCING A VEHICLE INTO LIMP-MODE WHILE IN USE - I HAVE LOST ALL FAITH IN THIS VEHICLE AND GM AND CANNOT TRUST IT FOR MY OWN YET FAMILIES SAFE USE.

Mileage: 40,950

TRANSMISSION IS STUTTERING RANDOMLY EVERY MINUTE OR SO, IT VIBRATES THE CAR AND FEELS LIKE I'M RUNNING OVER RUMBLE STRIPS.

Mileage: 53,000

2017 COLORADO, 19632 MILES, HARD UP/DOWN SHIFTS TO FIRST GEAR AND SHUDDERS WHILE DRIVING, FOUND BULLETIN 18NA355, DEALER HUFFINES CHEVROLET PLANO TX REPLACED TRANSMISSION FLUID PER BULLETIN AND RESOLVED SHUDDERING ISSUE BUT NOT HARD SHIFTING IN AND OUT OF FIRST GEAR AND DEALERSHIP WILL NOT RETURN CALLS TO RESOLVE PROBLEM.

TRANSMISSION SHUTTERS WHEN GOING AT A CONSTANT SPEED. THIS STARTED AROUND 10K MILES AND THE DEALERSHIP HAS TRIED TO FIX IT THREE TIMES WITHOUT SUCCESS. FIRST TWO TIMES THEY REPLACED THE TORQUE CONVERTER AND THIRD TIME THEY REPLACED THE TRANSMISSIONS FLUID. THE TRUCK ALSO SHIFTS VERY HARD FROM FIRST GEAR TO SECOND GEAR WITH A HUGE JERKING MOTION AROUND 10 MPH. THIS IS VERY DANGEROUS WHEN DRIVING IN PARKING LOTS OR ANYWHERE NEAR PEDESTRIANS. FINALLY, WHEN COMPRESSING THE BRAKE AT 25MPH THE TRUCK JERKS VERY VIOLENTLY DOWN TO THE NEXT GEAR. THE TRANSMISSION IN THESE TRUCKS NEEDS TO BE RECALLED AND REPLACED SOON.

Mileage: 30,000

I HAVE A 2017 COLORADO Z71. I BOUGHT IT SPECIFICALLY SO THAT BOTH MY WIFE AND I COULD USE IT AS NECESSARY, (BEING OF QUITE SMALL STATURE SHE IS UNABLE TO DRIVE A FULL SIZE PICK UP) HOWEVER, DUE TO THE FOLLOWING ONGOING ISSUES SHE HAS YET TO AGREE TO DRIVE IT OUT OF CONCERN FOR HER SAFETY. IT PRESENTED WITH WHAT HAVE BECOME CHRONIC TRANSMISSION PROBLEMS IMMEDIATELY AFTER PURCHASE. I HAVE RETURNED IT TO THE DEALER MULTIPLE TIMES TO NO AVAIL. INITIALLY IT INTERMITTENTLY SHUDDERED TO THE POINT OF VIBRATING THE ENTIRE VEHICLE AS IF DRIVING OVER RUMBLE STRIPS WHILE DRIVING ON EITHER STREETS OR HIGHWAY. THEN IT BEGAN LUNGING FORWARD UNEXPECTEDLY AND UNCONTROLLABLY WHEN PRESUMABLY SHIFTING TO THE POINT WHICH FEELS LIKE HAVING BEEN REAR ENDED BY ANOTHER VEHICLE WHILE DRIVING ON BOTH STREETS AND IN PARKING LOTS. DURING THE SPAN OF MULTIPLE VISITS THE DEALER HAS REPLACED THE TORQUE CONVERTER, AS WELL AS REPLACING THE TRANSMISSION FLUID. DESPITE NO LONGER SHUDDERING, THE VEHICLE STILL LUNGES RANDOMLY. I WAS INFORMED BY THE SERVICE MANAGER DURING MY LATEST VISIT ABOUT THE LUNGING THAT THEY KNEW WHAT THE VEHICLE IS DOING, AND THAT THERE IS NO FIX FOR IT...WHICH IS ABSOLUTELY UNACCEPTABLE. I'M QUITE CONCERNED ABOUT MY VEHICLE LUNGING UNEXPECTEDLY AND UNCONTROLLABLY INTO A PEDESTRIAN OR ANOTHER VEHICLE.

TRANSMISSION SHUDDER. SEEMS COMMON AFTER 40,000 MILES ON THE MAJORITY OF 2017-19 COLORADOS. TRUCK WOULD VIBRATE LIKE DRIVING OVER A RUMBLE STRIP AROUND 55+ MPH AFTER TRANSMISSION FLUID WOULD WARM UP ABOVE 80 DEGREES F. SHOULD BE A RECALL BECAUSE I HAD TO GO THROUGH HOOPS TO GET THEM TO EVEN LOOK AT THE TRANSMISSION BECAUSE THEY THOUGHT IT WAS A TIRE OR WHEEL WEIGHT. SUPER INCONVENIENT AND TIME CONSUMING.

Mileage: 40,500

I GOT A CHECK ENGINE LIGHT WHILE AND ENGINE GOES INTO REDUCED POWER MODE. YOU CAN'T DRIVE IN REDUCED POWER MODE! I HAVE TO CLEAR IT TO MOVE THE TRUCK. I DID A SCAN WHICH SHOWED A P2138 CODE. BUT ITS JUST IN MEMORY AND THE DEALER WONT FIX IT UNLESS ITS AN ACTIVE CODE BUT CAN'T DRIVE TO THE DEALER IN REDUCED POWER MODE. ITS A CATCH 22

Mileage: 29,000

TRANSMISSION SHUDDER

Mileage: 18,600

MY TRUCK SHUDDERS HORRIBLY ON HIGHWAY AND IN TOWN. IT STARTED JUST BEFORE MY LAST SERVICE AT 33731 MILES. I MENTIONED IT TO SERVICE ADVISOR AND WAS TOLD WITHOUT A CODE AS OWNER I WOULD BE THE ONLY ONE THAT COULD TELL THIS. NOTHING WAS DONE. THE ISSUE IS IRRITATING I RESEARCHED AND FOUND OUT IT IS AN ISSUE WITH MANY COLORADOS AND GM VEHICLES WITH THE SAME TRANSMISSION. I WILL BE CHECKING WITH THE DEALERSHIP SERVICE AGAIN TO SEE WITH THE INFORMATION I HAVE DISCOVERED IF ANYTHING WILL BE DONE.

TRANSMISSION SHUTTERING AND JERKING. RECALL NEEDS TO BE DONE IMMEDIATELY.

Mileage: 51,000

EXPERIENCE TRANSMISSION SHUDDER WHILE DRIVING VEHICLE. COULD CAUSE ISSUE WHILE PASSING OTHER VEHICLES DUE TO LOSS OF POWER. THE AMOUNT OF MONEY THESE NEWER VEHICLES ARE CHARGING, TRANSMISSION SHIFTING SHOULD BE FLAWLESS. NOT SURE IF THIS IS GOING TO GET WORSE AND CAUSE AN ACCIDENT. COULD IT JUMP GEARS WHILE TRYING TO COME TO A STOP? THIS IS ONGOING AND NEEDS TO BE ADDRESSED AND A REMEDY BY THE MANUFACTURER SOON.

SHUDDER AND SLIPPING IN THE GEARS CAUSED BY BAD FLUID AND TORQUE CONVERTER.

Mileage: 38,000

HARD SHIFTING & SLIPPING OF THE TRANSMISSION STARTED AT ABOUT 10,000 MILES. DEALER UNABLE TO REPAIR EVEN THOUGH THEY TRIED 4 TIMES INCLUDING A REMANUFACTURED TRANSMISSION. NOT SURE WHAT TYPE OF DAMAGE IS OCCURRING TO THE TRANSMISSION WITH THIS HARD SHIFTING.

VEHICLE SHUDDERS/SHAKES WHEN ACCELERATING OR MAINTAINING SPEED. CAN BE LIGHT SHUDDER, LIKE DRIVING OVER A BUMPY ROAD. OR CAN BE ENOUGH TO MAKE EVERYTHING SITTING IN DASH TO SHAKE VIOLENTLY.

Mileage: 21,000

TL* THE CONTACT OWNS A 2017 CHEVROLET COLORADO. WHILE DRIVING AT HIGH SPEEDS, THE VEHICLE STARTED TO VIOLENTLY VIBRATE. THE FAILURE ALSO OCCURRED WHEN ACCELERATING FROM A STOP. THE VEHICLE WAS TAKEN TO DYER CHEVROLET FORT PIERCE (4200 US HIGHWAY 1, FORT PIERCE, FL 34982, (772) 242-3116) MULTIPLE TIMES FOR THE FAILURE WHERE THE TRANSMISSION WAS SERVICED AND FLUSHED; HOWEVER, THE FAILURE RECURRED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND THE CONTACT RECEIVED A CASE NUMBER. THE FAILURE MILEAGE WAS 17,000.

Mileage: 17,000

SEPT 2018 HAVE NOTICED THAT TRUCK SEEMS TO VIBRATE, SHUDDER AT 50-60MPH. VIBRATION, SHUDDERING GOT WORSE, EVEN AT 25MPT. OCTOBER, I CONTACT SERVICE ADVISOR WHO BELIEVES MIGHT BE TORQUE CONVERTER NEED APPT TO VERIFY NOVEMBER FINALLY GOT APPT WITH SERVICE DEPT . THEY VERIFY IT IS TORQUE CONVERTOR AND ORDER PARTS. DECEMBER PARTS IN & TRUCK IN FOR 3 DAYS AS PARTS INSTALLED. TOLD THIS SHOULD SOLVE ISSUE, BUT CHEVROLET WORKING OF ANOTHER FIX FOR 1ST QUARTER OF 2019. TO DATE, I HAVE NOT NOTICED ANY ISSUES OF VIBRATION.DATE.

Mileage: 12,000

FUEL PUMP WELD CRACK, SERVICE 4WD MESSAGE DISPLAYED, CLUNKING IN REAR END ALL DISMISSED REPEATEDLY FROM DEALERSHIP I PURCHASED MY VEHICLE FROM. I BOUGHT THIS TRUCK NEW OFF THE LOT WHICH HAS BEEN IN THE SHOP IN EXCESS OF 10 TIMES FOR MULTIPLE ISSUES. THE 4X4 STARTED NOVEMBER 2017 I WAS TOLD IT WAS BECAUSE WE WERE HAVING ABNORMALLY COLD WEATHER AND IT WOULD COME OUT OF IT. IT HAS BEEN IN MULTIPLE TIMES SINCE THEN AND THEY WERE UNABLE TO DUPLICATE. CLUNKING IN REAR WAS DISMISSED AS NOTHING, COULD NOT DUPLICATE. I STARTED SMELLING BURNING PLASTIC, THEN WHEN STARTING MY VEHICLE IN THE MORNING THE EXHAUST SMELL WAS SO OVERPOWERING THAT IT WOULD GAG US. THE BURNING PLASTIC SMELL WAS INTERMITTENT WHILE DRIVING AND THAT WAS ONLY AFTER DRIVING THE TRUCK BETWEEN 2 TO 20 OR THE FULL DRIVE HOME AND SOMETIMES NOT AT ALL. I HAD BEEN NODDING OFF, GETTING MASSIVE HEADACHES AND SICK TO MY STOMACH WHILE DRIVING MY TRUCK, SO WAS MY DAUGHTER. NO MATTER WHAT THEY HAD MY TRUCK FOR, THEY COULD NOT DUPLICATE THE ISSUE AND I HAD A LOANER FOR A WEEK AT A TIME. I TOOK MY VEHICLE TO ANOTHER DEALERSHIP WHO JUST ENDED UP SEALING MY PICKUP BOX, REPLACING FUEL PUMP MODULE, INSTALLED A BODY PLUG PER A BULLETIN, PER BULLETIN APPLIED LUBRICANT TO BOTH REAR LEAF SPRINGS AND TORQUED LEAF SPRINGS TO SPECS. TRANSFER CASE CONTROL MODULE HAD A BULLETIN FOR WHICH MY DEALER STATED THEY PUT DIELECTRIC LUBRICANT. I WAS DRIVING A VEHICLE WITH MY CHILD IN IT WITH CARBON MONOXIDE POISONING US BASED ON THE SYMPTOMS WE WERE BOTH SUFFERING, EXACTLY WHEN WOULD THAT HAVE BEEN DUPLICATED, AT AUTOPSY???? I DON'T TRUST THIS TRUCK, I DON'T WANT TO DRIVE THIS TRUCK, I HATE THIS TRUCK NOW AND I AM STUCK WITH 5 YEARS OF PAYMENTS AND SOMETHING THAT TRIED TO KILL ME. HOW IS THAT FOR SAFETY!!!! MY OPINION ONLY!!!

Mileage: 10,142

WHILE ACCELERATING ON THE FREEWAY FROM APPROXIMATELY 65MPH, THE STABILITY CONTROL SYSTEM ENGAGED AND TOOK CONTROL OF THE ACCELERATION OF THE VEHICLE. ROADS WERE DRY WITHOUT ICE, SNOW OR RAIN. THE STABILITY CONTROL REDUCED POWER UNTIL THE ENGINE DIED EVEN WHILE PRESSING THE ACCELERATOR TO THE FLOOR. THE ENGINE WOULD NOT RESTART FOR APPROXIMATELY 5 MINUTES. THIS OCCURRED 3 TIMES ON DIFFERENT INTERSTATES ON A TRIP. WE WERE FORCED TO CAREFULLY MOVE TO THE RIGHT SHOULDER WHILE OUR VEHICLE WAS SLOWING UNTIL THE ENGINE DIED. MY WIFE AND I WERE LUCKY WE WERE NOT INVOLVED IN A SERIOUS ACCIDENT. ONSTAR NOTIFICATIONS SENT THE FOLLOWING IN AN EMAIL, "AN ISSUE WITH THE ENGINE AND TRANSMISSION SYSTEM IN YOUR 2017 CHEVROLET COLORADO HAS BEEN DETECTED. PLEASE SERVICE YOUR VEHICLE WITHIN 7 DAYS."

Mileage: 17,900

AT SPEEDS 45 MPH TRANSMISSION MAKES A LOAD THUMBING SOUND AND START SWITCHING BACK AND FORTH FOR GEAR. AT SPEEDS 60 UP TO 70 MPH A SHUDDERING STARTS MOSTLY UP GRADES AND DOWN GRADES. FROM REVIEW THERE IS A BULLETIN GM 16-NA-175. FROM WHAT I READ THIS DOESN'T FIX THE PROBLEM. THERE ARE NUMEROUS OF COMPLAINTS.

Mileage: 18,888

TRUCK BOGS DOWN, LOOSES POWER WHEN TAKING OFF FROM A STOP. FRONT TIRES FEEL LIKE THEY ARE SKIPPING EVEN THOUGH TRUCK IS IN 2 WHEEL DRIVE ESPECIALLY UP HILL. ONCE TRUCK GETS GOING IT RUMBLES AND VIBRATES SO MUCH IT BOTHERS YOUR EARS, CONSTANTLY LOOSING POWER AND SPEED AS YOUR DRIVING. WAS TOLD IT WAS THE TORQUE CONVERTER AND IT WAS REPLACED. TRUCK CONTINUED TO HAVE SAME ISSUE. TRUCK THEN 'BLEW UP' (DEALERSHIP WORDS) WHILE I WAS DRIVING 75 MPH DOWN THE HIGHWAY. DEALERSHIP STATED 'IT WAS LIKE YOUR TRUCK WENT INTO LOW GEAR WHILE YOU WERE DRIVING AND IT SHOULD NEVER BE ABLE TO DO THAT'. HAD FLUID FLUSH AND REPLACED AGAIN AND RUMBLING AND POWER LOSE STILL OCCURRING.

Mileage: 19,350

TL* THE CONTACT OWNS A 2017 CHEVROLET COLORADO. WHILE DRIVING HIGHWAY SPEEDS, THE CONTACT NOTICED THAT THE TACHOMETER FLUCTUATED AND THE TRANSMISSION SHUDDERED. THE VEHICLE WAS TAKEN TO AN UNKNOWN DEALER WHERE IT WAS DIAGNOSED THAT THE TRANSMISSION TORQUE CONVERTER FAILED. THE DEALER REPLACED THE TORQUE CONVERTER AND THE TRANSMISSION WAS FLUSHED. THE DEALER ALSO REPROGRAMMED THE TRANSMISSION COMPUTER. THE MANUFACTURER WAS CONTACTED AND PROVIDED CASE NUMBER: 9-4982753540. THE MANUFACTURER ISSUED TECHNICAL SERVICE BULLETIN NUMBER: 4942742 PIE0405C (ENGINEERING INFORMATION TORQUE CONVERTER SHUDDER). THE APPROXIMATE FAILURE MILEAGE WAS 13,500. *TT CONSUMER STATED TORQUE CONVERTER HAD WRONG TRANSMISSION FLUID FROM FACTORY.*JB

Mileage: 13,500

AT 21000 MILES FELT LIKE DRIVING OVER RUMBLE STRIPS AND TACH WOULD MOVE IN CRUISE. DEALER FLUSHED TRANS. 4 MONTHS LATER AT 29000 MILES SAME PROBLEM BUT NOW SHIFTING HARD NOTICED DURING ACCELERATION AND DECELERATION. CHANGED OUT CONVERTER AND FLUSH. NOW 3 MONTHS LATER AND ONLY 2500 MILES LATER IT HAS STARTED ALL OVER AGAIN. SO BACK TO THE DEALER I WILL GO. AM STARTING TO REGRET BUYING A CHEVY INSTEAD OF STAYING WITH MY TRUSTY FORD

Mileage: 21,837

TRANSMISSION SHUDDER. FELLS LIKE DRIVING OVER RUMBLE STRIPS. GM KNOWS OF THIS ISSUE BUT KEEPS PUTTING THESE 8 SPEED TRANSMISSIONS ON THE ROAD.

Mileage: 19,000

WHEN AUTOMATIC TRANSMISSION DOWNSHIFTS INTO 1ST GEAR COMING TO A STOP, IT LUNGES FORWARD. IF WHEN NOSING INTO A PARKING SPACE WITH ANY KIND OF POLE OR VEHICLE DIRECTLY IN FRONT OF MY TRUCK, NOT LEAVING ENOUGH SPACE MY TRUCK WOULD HIT WHATEVER. WHEN DRIVING SLOWLY WITH MY 8 SPEED AUTOMATIC TRANSMISSION SOMETIMES IT RATTLES AS IF I AM ON A RUMBLE STRIP AND SOMETIMES IT JUST CLUNKS OR THUDS. THIS AND OTHER SHIFT ISSUES MAKE ME EVEN MORE HYPER VIGILANT WHEN DRIVING. 6 MONTHS AFTER I PURCHASED MY BRAND NEW 2017 COLORADO, DURING A SPELL OF NEGATIVE DEGREE WEATHER I LOST THE FOLLOWING: MY CRUISE CONTROL, TRACTION CONTROL, FOUR-WHEEL DRIVE; MY ENGINE LIGHT CAME, OIL LIGHT ALL LIGHTS CAME ON AND MY RADIO STOPPED WORKING. I WAS TOLD BY MY CHEVY DEALER THAT THIS WAS NORMAL IN COLD WEATHER. NEXT, I WAS INFORMED IT MUST BE BECAUSE I WASHED MY VEHICLE THE DAY BEFORE. THIS WENT ON FOR A FEW MONTHS, WITH ME SHOWING THEM VIDEOS AND THEM TELLING ME THEY COULD NOT DUPLICATE THE ISSUE. OCTOBER OF 2018 THEY REPLACED MY RADIO BECAUSE EVIDENTLY THE RADIO HAD A BULLETIN THAT SHOWED ALL OF THE THINGS I HAD COMPLAINED ABOUT. I WANT TO SAY THIS HAPPENED IN EXCESS OF 10 OR MORE TIMES. DRIVING TO MY MOTHERS ONE EVENING IN THE DARK MY DASH LIGHTS WERE NOT DIMMING CORRECTLY AND THEN WENT OUT. AS I GOT TO A FOUR WAY INTERSECTION WITH CARS COMING THEY CAME ON SO BRIGHTLY I ALMOST GOT IN AN ACCIDENT WHICH PROMPTED ME TO MAKE AN APPOINTMENT AND I WASN'T WILLING TO HEAR SILLY EXCUSES.

Mileage: 13,000

I HAVE HAD REPEATED ISSUES WITH THE TRANSMISSION AND THE TRANSMISSION WILL NOT SHIFT OUT OF 5TH GEAR WHEN IN TOW MODE AND WHEN TOWING LOAD UNDER SPECIFICATIONS. I HAVE STARTED THE LEMON LAW PROCESS BUT THE MANUFACTURER HAS DENIED MY CLAIM AS OF TODAY.

Mileage: 5,310

AIR CONDITIONING IS INTERMITTENT/BLOWS WARM/EMITS FOG FROM VENTS. THE DEALER SAYS NO FIX AVAILABLE YET CITES PER DOC ID:5125499.SAYS ENGINEERING IS STUDYING PROBLEM. MINE STOPS WORKING-BLOWS WARM WITH IN 1/2 HOUR. ALSO IN STOP/GO TRAFFIC THE TRANSMISSION DOWNSHIFTS ABRUPTLY AND CAUSES TRUCK TO ACCELERATE FORWARD-HAVE TO APPLY BRAKES HARD TO AVOID COLLISION. DEALER SAYS CAN NOT REPEAT BUT SHIFTING IS CONSISTENTLY ABRUPT AND I HAVE ASKED ABOUT SOFTWARE UPDATES TO ALLIEVIATE THIS SAFTY CONCERN TO NO AVAIL

Mileage: 500

THE VEHICLE HAS A SHUDDER IN THE TRANSMISSION UNDER LIGHT THROTTLE ACCELERATION BETWEEN ABOUT 50 AND 80 MPH ON THE HIGHWAY. IT FEELS AS IF I'M DRIVING OVER RUMBLE STRIPS ON THE ROAD FOR ABOUT A SECOND. THEN IT WILL STOP FOR A SECOND OR TWO, AND THEN SHAKE AGAIN FOR A SECOND. WITHOUT THROTTLE, NO SHAKING OCCURS. THIS HAS BEEN OCCURRING FOR ABOUT TWO WEEKS, OR PERHAPS THE LAST 500 MILES. IT MIGHT BE DESCRIBED BY BULLETIN 18-NA-177.

Mileage: 6,000

TL* THE CONTACT OWNS A 2017 CHEVROLET COLORADO. WHILE DRIVING AT AN UNKNOWN SPEED, THE VEHICLE ACCELERATED AND JERKED. ADDITIONALLY, THE BRAKES WERE APPLIED, BUT FAILED TO RESPOND AND THE BRAKE PEDAL TRAVELED TO THE FLOORBOARD. IN ADDITION, THE CONTACT HEARD AN ABNORMAL SCRATCHING NOISE. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN SEVERAL TIMES TO GILROY CHEVROLET (6720 AUTOMALL CT, GILROY, CA 95020, 408-842-9301), BUT THEY WERE UNABLE TO DUPLICATE THE BRAKE FAILURE. THE DEALER DIAGNOSED THE ACCELERATION FAILURE AS THE FOUR WHEEL DRIVE BEING ENGAGED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED AND PROVIDED CASE NUMBER: 8-4000-730943. NO FURTHER ASSISTANCE WAS PROVIDED. THE FAILURE MILEAGE WAS APPROXIMATELY 17,759.

Mileage: 17,759

EXPERIENCING ELECTRICAL PROBLEMS CAUSING STARTING ISSUES, WHILE DRIVING FAILURES IN DASH INDICATOR LIGHS, SPEEDOMETER , TACHOMETER, SHIFT CONTROL INDICATOR LIGHTS, AND TRANSMISSION CONTROL. LOSS OF POWER TO THE POINT TRUCK ALMOST COMES TO A STOP AND THEN SURGES, TWICE IT HAS ACCELERATED TRAVELING UP TO 50FT ESTIMATED.

Mileage: 7,079

8 SPEED AUTOMATIC TRANSMISSION - ROUGH SHIFTING, USUALLY WHEN DRIVING BETWEEN 40 AND 60 MILES PER HOUR. TRUCK INTERMITTENTLY FEELS LIKE IT IS RIDING OVER RUMBLE STRIPS. TRANSMISSION SEEMS TO BE HUNTING. POSSIBLE ISSUE WITH TORQUE CONVERTER.

Mileage: 1,000

WHEN AUTOMATIC TRANSMISSION DOWNSHIFTS INTO 1ST GEAR COMING TO A STOP, IT DOES SO HARSHLY AND LUNGES FORWARD. WHEN NOSING INTO A PARKING SPACE WITH A CONCRETE WALL AT THE FRONT OF THE PARKING SPACE, IF I HAD NOT ALLOWED ENOUGH SPACE FOR THE LUNGE, THE VEHICLE WOULD HAVE IMPACTED THE WALL . THIS CONDITION, ALONG WITH OTHER TRANSMISSION SHIFT IRREGULARITIES, HAPPENS PERIODICALLY AND I MUST REMAIN AWARE, ESPECIALLY COMING TO A STOP NEAR A CROSS WALK.

Mileage: 11,700

WHEN DRIVING AT LOW SPEEDS MY 8 SPEED AUTO TRANSMISSION - CLUNKS OR THUDS - SPECIALLY FROM 1ST - 2ND - ITS SOUNDS LIKE A BANG - TOOK IT TO DEALER - SAID CHEVY KNOWS ABOUT IT - BUT THERE IS NO FIX YET.....GREAT!

Mileage: 10

8 SPEED TRANSMISSION HAS HARD SHIFT WHEN AT LOW SPEEDS AND WHEN GOING INTO REVERSE

Mileage: 6,000

8-SPEED AUTOMATIC TRANSMISSION IN INDECISIVE WHEN IT COMES TO SHIFTING BETWEEN LOWER GEARS WHILE DRIVING. TRANSMISSION MAKING CLUNKING "THUD" SOUND WHEN SHIFTING OUT OF PARK AND INTO REVERSE. GEAR HUNTING EXPERIENCED AT LOWER SPEEDS AND GEARS WHILE VEHICLE ATTEMPTS SHIFTING.

Mileage: 11,000

IN COLD TEMPERATURES THAT THE NORTHERN STATES EXPERIENCE (AROUND 4 DEGREES F) THE TRUCK WILL INTERMITTENTLY DIE IN THE MIDDLE OF THE ROAD WHILE DRIVING. COMPLETE POWER LOSS WITH NO WARNING, WHICH SEEMS TO HAPPEN AT ANY TIME. WHEN THE WEATHER IS ABOVE 10F CONSISTENTLY IT SEEMS THERE ARE NO ISSUES. EXTREMELY DANGEROUS AND CAN LEAVE YOU SUDDENLY WITHOUT POWER WHILE DRIVING.

Mileage: 2,300

AFTER ABOUT 600-700 MILES ON NEW VEHICLE, AFTER TRUCK SITS OVERNIGHT WHEN FIRST STARTED YOU COULD FEEL WHAT SEEMS TO BE THE THE TORQUE CONVERTER WAS ENGAGING AS IT THE TRANSMISSION HAD LOST PRESSURE. THEN WHILE DRIVING ANYWHERE BETWEEN 40-65MPH CONVERTER SEEM TO BE UNLOCKING AND LOCKING WHICH CAUSE A VERY BAD SHUTTER AS IF YOU WERE DRIVING OVER BRICKS, AND THEN WHEN COMING TO A STOP THE TRANSMISSION DOWN SHIFTED INTO 1ST GEAR VERY VERY HARD, WHICH IS HARD ON THE DRIVE LINE. TOOK BACK TO DEALER THEY KEEP IT 3 DAYS AND FLUSHED TRANS FLUID WITH A NEW SPECIAL FLUID. THE SHUTTERING HAS STOPPED BUT THE OTHER 2 PROBLEMS REMAIN, SO I'M THINKING NOW THEY'LL HAVE TO CHANGE THE CONVERTER OUT.

Mileage: 700

THE PROBLEM WITH MY CHEVROLET COLORADO 2017 TRUCK STARTED WITH WHEN THE NEW TRUCK BARLEY HAD UNDER 200 MILES ON ITS ODOMETER. THE ISSUE IS THE TRUCK STARTS TO VIBRATED AT A SPEED OF 50-55 MPH LIKE IF YOU ARE GOING THRU SPEED BUMPS AND THE NOISE STOPS WHEN YOU GO OVER 60 MILES PER HOUR. I HAVE DONE A SIMPLE 20 MINUTE RESERCH AND HAVE FOUND OUT THAT THERE ARE OTHER INDIVIDUALS THAT HAVE HAD THE SAME ISSUE WITH THEIR SAME YEAR COLORADO TRUCK'S. I TOOK MY TRUCK TO THE DEALERSHIP WHERE I BOUGHT THE TRUCK. THEY KNEW EXACTLY WHAT THE ISSUE WAS. THEY ARE IN THE PROCESS OF REPLACING THE TORQUE CONVERTER. LOOKS LIKE A MAJOR CONCERN TO ME.

Mileage: 200

AT 1400 MILES TRUCK STARTED A HEAVY PULSATING VIBRATION BETWEEN 50 AND 55 MILES PER HOUR. TOOK IT TO MYRTLE BEACH CHEVROLET WHERE THEY BALANCED THE TIRES. IT DID NOT FIX THE TRUCK. STILL VIBRATING NOW STARTING AT 20 MILES PER HOUR. SEVERE PULSATING VIBRATION AT 55 MILES PER HOUR. GOING BACK TO THE SHOP NEXT WEEK

Mileage: 1,400

MY TRUCK WAS PARKED INSIDE MY GARAGE THE WHOLE NIGHT. THE FOLLOWING MORNING I NOTICED 2 AREAS ON MY GARAGE FLOOR UNDERNEATH THE VEHICLE FRESH LIQUID. I TOUCHED TO CHECK WHAT THEY ARE AND I CONFIRMED BY THE APPEARANCE AND SMELL THAT THEY ARE OIL. I CRAWLED UNDERNEATH MY TRUCK TO CHECK WHICH PART THEY ARE COMING FROM. I SAW ONE AREA ON THE FRONT RIGHT AXLE OIL LEAKING.I ALSO TOOK PICTURES OF THE LEAKING OIL.I BOUGHT MY TRUCK ON AUGUST 24,2017 AND I DISCOVERED THE LEAK ON SEPT 14,2017(.LESS THAN A MONTH OLD) THE DEALER SAID THEY REPLACED THE AXLE SEAL AND IT SHOULD FIX IT.

Mileage: 1,400

I AM WRITING THIS AFTER ANOTHER CHEVY COLORADO OWNER POSTED ABOUT THIS. I HAVE THE SAME ISSUE. THEIR COMPLAINT IS #11023887. THERE IS NO INDICATOR ON THE DASH THAT SHOWS WHEN THE VEHICLE IS IN 4 WHEEL DRIVE. THE ONLY INDICATOR IS A SMALL LED LIGHT ON THE KNOB THAT IS PARTIALLY HIDDEN BY THE STEERING WHEEL. THIS IS A HAZARD, BECAUSE THIS IS A PRIME LOCATION FOR A KNEE TO HIT THE KNOB, TURNING THE FOUR WHEEL DRIVE SYSTEM ON BY ACCIDENT. SO YOU CAN ACCIDENTALLY TURN ON 4 WHEEL DRIVE, AND NOT KNOW UNTIL YOU ARE DRIVING DOWN THE ROAD. THIS IS NOT IDEAL. BECAUSE YOU HAVE TO TAKE YOUR EYES OFF THE ROAD TO FIND THE KNOB TO TURN IT BACK TO 2 WHEEL DRIVE. THIS COULD CAUSE AN ACCIDENT. THERE REALLY NEEDS TO BE A 4 WHEEL DRIVE INDICATOR ON THE DASH, OR GM NEEDS TO COME UP WITH A FIX. DRIVING IN 4 WHEEL DRIVE ON DRY PAVEMENT CAN ALSO CAUSE SEVERE DRIVE TRAIN DAMAGE.

Mileage: 9,000

MY COMPLAINT ALONG WITH THOUSANDS OF OTHER CHEVY COLORADO AND GMC CANYON OWNERS IS THE LACK OF A 4WD INDICATOR REMINDER LIGHT IN THE GAUGE CLUSTER. IT SEEMS THAT GM DECIDED THAT JUST A TINY LED LIGHT WHICH IS BASICALLY IMPOSSIBLE TO EVEN SEE IN DAYTIME WAS ENOUGH. THE ONLY THING THAT COMES UP ON THE DASH IS A MESSAGE THAT READS "SHIFT IN PROGRESS" BUT NO OTHER INDICATOR TO LET YOU KNOW THAT THE TRANSFER CASE HAS IN FACT MADE THE SHIFT OR WHAT DRIVE MODE IT SHIFTED INTO.THE OTHER PROBLEM IS THE LOCATION OF THIS 4WD SHIFT KNOB. IT'S LOCATED TO THE LEFT, BELOW AND BEHIND THE STEERING WHEEL NEXT TO THE HEADLIGHT CONTROL KNOB AS MY ATTACHED PHOTOS WILL SHOW. IT IS IMPOSSIBLE TO SEE WHILE DRIVING SINCE IT'S VIEW IS BLOCKED BY THE STEERING WHEEL AND IN ORDER TO ACTUALLY SEE WHAT DRIVE MODE THE VEHICLE IS IN YOU MUST TAKE YOUR EYES OFF THE ROAD WHILE DRIVING, TRY TO EITHER LOOK THROUGH THE BOTTOM OF THE STEERING WHEEL, AROUND IT OR BELOW IT TO SEE THE POSITION OF THIS KNOB. I MYSELF WAS DRIVING ON THE BEACH IN 4WD WHEN I WENT FISHING. WHEN I LEFT THE BEACH MY TRUCK WASN'T DRIVING NORMALLY AND I REALIZED I NEVER SHIFTED BACK INTO 2WD. I LITERALLY HAD TO TAKE MY EYES OFF THE ROAD TO LOOK AT THIS KNOB TO CHECK TO SEE WHAT POSITION IT WAS IN AND I CAME VERY CLOSE TO HAVING AN ACCIDENT. ALSO DRIVING ON PAVEMENT IN 4WD CAN CAUSE SERIOUS DAMAGE TO THE DRIVELINE AND ALSO EFFECTING THE STABILITY CONTROL SYSTEM AND ABS. THIS IS THE FIRST 4 WHEEL DRIVE VEHICLE I'VE OWNED THAT LACKED A 4WD INDICATOR REMINDER LIGHT. GM ACTUALLY HAS AN OFF-ROAD 4WD INFORMATION SCREEN IN THE DIC ON SOME MODELS BUT FOR SOME REASON THEY DIDN'T MAKE THIS SCREEN AVAILABLE ON THE COLORADO. THIS FEATURE SHOULD BE STANDARD ON ANY OF THEIR 4WD VEHICLES OR AT THE VERY LEAST A 4WD REMINDER INDICATOR LIGHT ON THE DASH DUE TO THE UNSAFE LOCATION OF THE 4WD CONTROL KNOB. THIS IS JUST AN ACCIDENT WAITING TO HAPPEN!

Mileage: 650