2015 CHEVROLET COLORADO Power Train Problems

Steering: Sudden loss of power steering. DIS display says check Stable trak Transmission: Has a problem with request for downshift

Power steering issue, internal torque sensor faulting, stabilitrak error, ABS error

Power steering assist is occasionally lost and makes vehicles hard to manuver. If the car is turned off and restarted the problem is momentarily fixed but happens again at random.

Sluggish or chattering, shaking transmission, at slow speeds.

The contact owns a 2015 Chevrolet Colorado. The contact stated while driving 35 MPH, the vehicle lost power steering functionality and the vehicle was difficulty to steer. The contact was able to safely drive the vehicle to the residence. The vehicle was taken to an independent mechanic where it was diagnosed with power steering unit failure. The contact was informed that the power steering unit needed to be replaced. The vehicle was not repaired. The contact stated that in 2016 the vehicle was repaired under an unknown recall for the power steering unit however, the failure occurred. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 96,000.

Mileage: 96,000

Transmision in this vehicle is the worst,and could be dangerous for novice drivers.I've read plaged problems with these vehicles and transmissions after I purchased it.Transmision jerky,shutters.You go to take off and it switches in to low gears too soon and causes the vehicle to vibrate.Sometimes slips between 4th and 5th gear.Also when giving a little bit of throttle sometimes vehicle acts like your flooring it,in rainy or icy weather can cause back wheels to spin causing fish tailing.Had it happen couple times.I've read torque converter problems,and some under a campaign have been replaced.This vehicle has low mileage for a 2015 (83,000)

Transmission slippage, shudder at low rates and high rates of speed.

Transmission begins to buck at low speeds. It’s as if transmission does not know what gear to be placed in. Would have to give it gas from keeping it from shaking the hole car

The contact owns a 2015 Chevrolet Colorado. The contact stated that while driving at various speeds, the transmission would intermittently hesitate upon the depression of the accelerator pedal without warning. The contact had taken the vehicle to a dealer and was informed that there were no defects with the vehicle and that the hesitation was normal vehicle operation. The manufacturer had also been notified of the failure but offered no assistance. The vehicle had yet to be repaired. The failure mileage was 15.

Mileage: 15

The contact owns a 2015 Chevrolet Colorado. The contact stated while driving approximately 40 MPH, the vehicle would not shift correctly. The contact stated that there was no warning light illuminated. The vehicle was not diagnosed or repaired. The manufacturer was informed of the failure and was awaiting a response. The failure mileage was approximately 51,400.

Mileage: 51,400

KEY HAS BEEN STICKING IN IGNITION, UNABLE TO REMOVE. IVE KEPT THE KEY IN THE IGNITION AND THE BATTERY HAS NEEDED JUMPED. DEALER TELLS ME THIS IS A VERY COMMON PROBLEM ON CHEVY COLORADOS FROM 2015 AND 2016 AS I HAVE NOW DISCOVERED ON MULTIPLE CHEVY FORUMS.

Mileage: 45,000

TRANSMISSION NOT SHIFTING CORRECTLY, HUNTS FOR GEARS AND WONT DOWNSHIFT UNDER ACCELERATION

Mileage: 10,815

TL* THE CONTACT OWNED A 2015 CHEVROLET COLORADO. THE CONTACT STATED THAT WHILE BACKING UP, THE VEHICLE ACCELERATED BACKWARD AND CRASHED INTO A PARKED VEHICLE WITHOUT WARNING. THE VEHICLE IMMEDIATELY LURED FORWARD BY ITSELF, HIT THE CURB AND CRASHED INTO ANOTHER VEHICLE, WHICH IN TURN CRASHED INTO OTHER VEHICLES THAT WERE PARKED ON THE SAME ROAD. THE POLICE WAS ALERTED BY ONLOOKERS, WHO THOUGHT THE CONTACT WAS DRUNK. A POLICE REPORT WAS FILED. THE AIR BAGS DID NOT DEPLOY. THE CONTACT SUSTAINED INJURY THAT REQUIRED A MEDICAL ATTENTION. THE VEHICLE WAS DAMAGED, NOT TOTALED AND WAS TOWED TO A COLLISION CENTER. THE DEALER WAS NOT CALLED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VEHICLE WAS TAKEN CARE OF BY THE INSURANCE COMPANY. THE FAILURE MILEAGE WAS APPROXIMATELY 27,000. *BF CONSUMER STATES THAT HE THOUGHT THE TRANSMISSION HAD FAILED. HE STATES THAT HE TRIED TO TAKE VEHICLE OUT OF GEAR AND TO TURN OFF POWER DURING AND AFTER THE ACCIDENT BUT HE WAS UNABLE. POWER WAS DISABLED BY THE PERSON THAT TRANSPORTED VEHICLE TO REPAIR CENTER. *DL

Mileage: 27,000

DASH LIGHTS FOR ABS, TRACTION CONTROL, AND STABILITRAC GO ON AND OFF I HAD IT IN TO THE DEALERSHIP BEFORE THEY SAID IT WAS NOTHING IT BACK AND I AM BRINGING IT IN AGAIN .I READ ONLINE THAT THERE WAS A RECALL BUT ONLY FOR CERTAIN REGIONS ALSO READ THIS IS HAPPENING IN OTHER AREAS LIKE WITH ME. SEEMS DANGEROUS WITH BRAKES AND TRACTION CONTROL AND STABILITY. IT HAPPENS WHILE I AM ON THE ROAD WOULD HATE TO HAVE MYSELF OR SOMEONE ELSE HURT IF THERE IS SOMETHING WRONG.

Mileage: 97,000

BACK IN EARLY 2018 PRIOR TO MY BUMPER TO BUMPER EXPIRING, I HAD THE CHECK POWER STEERING AND STABILITRAK COME ON ON DIC. I TOOK IT TO DEALER BUT THEY STATED COULD NOT FIND ANY ISSUES. THIS KEEPS HAPPENING BUT EVERYTIME I TURN TRUCK OFF AND THEN BACK ON AS STATED IN OWNER'S MANUAL, PROBLEM GOES AWAY. MORE RECENT PAST WEEK, IT HAS BEEN HAPPENINGS AGAIN BUT MORE FREQUENT TO WHICH AT TIMES, TURNING OFF AND WAITING THEN TURNING BACK ON, THE PROBLEM PERSISTS. THIS PROBLEM HAPPENS VARIOUS TIMES (WHILE DRIVING CITY, HIGHWAY, AS I'M TURNING VEHICLE ON FOR FIRST TIME IN THE DAY, WHILE BACKING UP, WHILE PARKING). I HAVE MENTIONED AND TAKEN IN TO DEALER OR OTHER PLACES BUT NO CODES ARE FOUND AND PROBLEM CANNOT BE DUPLICATED.

Mileage: 35,000

THE TRANSMISSION IS SLIPPING BETWEEN 3RD AND 4TH GEAR. TAKES A FEW SECONDS TO ACTUALLY GET INTO GEAR. WHEN BROUGHT BACK TO THE DEALERSHIP THEY WERE ABLE TO REPLICA THE PROBLEM. WHEN IT WAS BROUGHT UP TO BE REPAIRED WITH GM THEY REPORTED THE ISSUE AS NORMAL AND TO MAKE SURE THE TRANSMISSION FLUID IS WARMED UP PRIOR TO DRIVE. ALTHOUGH IT STILL SLIPPING ON A TRUCK UNDER 40K MILES. THEY ARE REFUSING TO FIX THE ISSUE AS SAYING IT IS A NORMAL ISSUE IN THIS AND MANY OTHER MOTORS. I NEVER HAD A VEHICLE SLIP OUT OF GEAR AND TAKE 2 TO 3 SECONDS REVVING UP AND THEN POPPING INTO GEAR. THIS ISSUE NEEDS TO BE LOOKED AT AS IT CAN CAUSE PROBLEMS AND DANGEROUS DRIVING CONDITIONS FOR SOMEONE DRIVING ON THE HIGHWAY RO FREEWAY.

Mileage: 38,000

THIS VEHICLE WAS PURCHASED OCTOBER 31, 2016 AS A CERTIFIED PRE OWNED WITH 17,900 MILES ON THE ODOMETER. FROM DAY ONE, THE TRANSMISSION (AUTOMATIC V6) HAS SHIFTED POORLY. IT IS SLUGGISH ON ACCELERATION AND REQUIRES PUSHING THE PEDAL TO THE FLOOR TO GET IT TO UPSHIFT. AND WHEN IT FINALLY DOES, IT SKIPS A GEAR AND RAISES THE RPMS TO OVER 4,000. WHEN COASTING DOWN IN INCLINE, THE TANSMISSION WILL ARBITRARILY DOWNSHIFT ITSELF AND WILL OCCASIONALLY SKIP A GEAR, AGAIN CAUSING EXCESSIVE RPMS. NEITHER THE DEALER NOR GM HAS A REMEDY FOR THIS PROBLEM, ALTHOUGH THE DEALER HAS ADMITTED THAT THERE HAVE BEEN SEVERAL COMPLAINTS FOR THE SAME ISSUE FROM OTHER PEOPLE WHO HAVE PURCHASED COLORADOS. IT APPEARS TO HAVE ALL THE CLASSIC SIGNS OF A BAD DESIGN! HOPEFULLY, GM WILL OFFER A FIX TO THE PROBLEM BEFORE SOMEONE GETS SERIOUSLY HURT OR WORSE!

Mileage: 17,900

TL* THE CONTACT OWNS A 2015 CHEVROLET COLORADO. AFTER PARKING THE VEHICLE, THE KEY WOULD NOT ROTATE COMPLETELY TO SHUT THE VEHICLE OFF NOR COULD THE KEY BE REMOVED FROM THE IGNITION SWITCH. THE DRIVER HAD TO JIGGLE OR REPOSITION THE SHIFT LEVER IN ORDER TO REMOVE THE KEY FROM THE IGNITION SWITCH. THE VEHICLE WAS TAKEN TO THE LOCAL DEALER (H & H CHEVROLET, 730 E. KING ST., SHIPPENSBURG, PA) WHERE IT WAS DIAGNOSED THAT THE TRANSMISSION CONTROL LEVER KNOB WAS NOT FULLY SEATED DURING MANUFACTURING OF THE VEHICLE AND NEEDED TO BE REPAIRED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 15,000.

Mileage: 15,000

PURCHASED 2015 COLORADO JULY 2015.WE HAD IT IN FOR OIL CHANGES & A FEW TIMES REGARDING HESITATION OF ACCELERATION. SERVICE TECHS DID NOT TYPE COMPLAINT WHEN IN FOR OIL CHANGE ONLY WHEN BROUGHT IN SPECIFICALLY FOR ACCELERATION ISSUE. THEY STATED IT WAS OUR FAULT WE DID NOT READ THE WORK ORDER.IT IS NOT MY JOB TO READ A WORK ORDER IT'S THE SERVICE TECHS JOB TO ENTER EVERY COMPLAINT OR ISSUE ADDRESSED BY THE CUSTOMER. THE LAST SERVICE WAS WHEN I SPOKE TO SALES MANAGER WHO SET ME UP WITH SERVICE MANAGER & I WAS ASSURED ME A TECH WOULD DRIVE VEHICLE FOR A WEEK TO AND FROM DEALERSHIP APPROX 40 MILES PER DAY SO THEY COULD DIAGNOSE THE ISSUES.I HAD ADVISED ISSUE IS INTERMITTENT; THE REASON THEY COULD NEVER DUPLICATE WHILE IN FOR SERVICE. THEY MADE SURE TO STATE IT WAS RUNNING TO MANUFACTURER SPECS. THEY DROVE IT 10 MILES NOT 40 MILES A DAY FOR THE 7 DAYS THEY HAD IT.THEN SAID EXACTLY THAT IT WAS RUNNING TO MANUFACTURER SPECS. OF COURSE IT DID, YOU DID NOT DO WHAT YOU PROMISED WASTING MY TIME & KEPT MY VEHICLE FOR 7 DAYS JUST TO PACIFY ME. I TOLD THE SALES MANAGER WHAT HAPPENED WHO I PURCHASED THE 2015 COLORADO & MY 2014 CAMARO THAT I WOULD NEVER BUY ANOTHER CHEVY PRODUCT AS THEY WOULD NOT STAND BY THIS ISSUE, THEIR CUSTOMER OR THE LEMON LAW. TODAY MY HUSBAND IS IN AUSTIN TEXAS WITH HIS TRUCK IN THE SHOP AGAIN AS TRUCK NOW HAS A SERVICE ENGINE LIGHT ON; OF COURSE STILL HAS THE ACCELERATION ISSUES AS THAT WAS NEVER ADDRESSED OR FIXED.WE HAVE TO PAY $800.00 TO FIX ENGINE ISSUES ON A 2015 VEHICLE, THIS TIME NO WARRANTY EVEN THOUGH WE THOUGHT WE WERE GIVEN A 75K WARRANTY WHEN WE PURCHASED THE VEHICLE. THIS IS THE ONLY THING I CAN THINK OF DOING PRIOR TO RETAINING AN ATTORNEY TO FIGHT FOR THE LEMON LAW FOR A VEHICLE WE BOUGHT FOR 40K. WE HAVE HAD ISSUES WITH THIS VEHICLE SINCE PURCHASE & I AM HOPING I WILL GET A CALL FROM SOMEONE FROM THE NHTSA REGARDING THIS COMPLAINT!

Mileage: 10

WHEN DRIVING MY 2015 COLORADO Z71 4X4 WITH THE V6, IN CITY TRAFFIC, YOU TRY TO SPEED UP SLIGHTLY SO YOU DEPRESS THE THROTTLE AND THE TRUCK DOESN'T GO ANY FASTER, THEN THE TRUCK WILL DOWNSHIFT TWO GEARS, LURCH FORWARD AT HIGH RPM'S NEARLY STRIKING THE VEHICLE IN FRONT OF YOU. THE ENGINE ALSO SPARK KNOCKS WHEN UP SHIFTING IN ALL GEARS. TOOK IT TO DEALERSHIP AND WAS TOLD, GM ENGINEERS WERE AWARE OF THE PROBLEM AND WORKING ON IT, IT APPEARS THEY FIXED IT WITH THE 2017 COLORADO AS THEY PUT A DIFFERENT ENGINE AND 8 SPEED TRANSMISSION IN THE NEW TRUCKS. IF THERE WAS NOTHING WRONG WITH THE ORIGINAL POWER PLANT AND TRANSMISSION WHY WOULD THEY CHANGE ESPECIALLY SINCE THE NEW ENGINE TRANSMISSION DOESN'T GET ANY BETTER MILEAGE. ALSO, WHEN DRIVING AT HIGHWAY SPEED, 75 MPH THE TRUCK DOWNSHIFTS ON IT'S OWN, THE RPM'S GO ALMOST TO REDLINE AND IF SOMEONES IN BACK OF YOU, YOU ALMOST GET REAR ENDED. GM SAYS THAT THE TRANSMISSION IS LEARNING, REALLY AT 17000 MILES ITS STILL LEARNING. THERE IS A SIGNIFICANT PROBLEM WITH THE SHIFT PATTERN AND TIMING WITH THE ENGINE ON THIS TRUCK. THE SPARK KNOCK AND TRANSMISSION ISSUES HAVE BEEN GOING ON SINCE THE TRUCK WAS NEW.

Mileage: 500

MY 2015 CHEVROLET COLORADO Z71 4X4 HAS A SERIOUS, VIOLENT VIBRATION AT HIGHWAY SPEED. THE DEALERSHIP HAS HAD THE VEHICLE FOR GOING ON 40 DAYS. THE TRUCK HAD APPROXIMATELY 24-25000 MILES ON IT AND WHILE ON VACATION IN TEXAS WHILE DRIVING THE TRUCK ON INTERSTATE 10 WHERE THE SPEED LIMIT IS 80 MPH THE TRUCK BEGAN SHAKING AND VIBRATING VIOLENTLY. THE TRUCK HAS BEEN AT THE DEALERSHIP SINCE SEPTEMBER 08, THEY HAVE REPLACED THE UPPER RIGHT CONTROL ARM, ROAD FORCE BALANCED THE TIRES TWP TIMES, ALIGNMENT TWO TIMES, REPLACED THE TIRES, REPLACED THE TIRES AND WHEELS WITH SOME FROM A 2017 COLORADO, REBUILT THE REAR DIFFERENTIAL, NOW THE REAR DIFFERENTIAL HAS BEEN REPLACED WITH A NEW FACTORY DIFFERENTIAL, AND THE TRUCK STILL HAS A SERIOUS, VIOLENT VIBRATION THAT MAKES THE ENTIRE TRUCK SHAKE. IT FEELS LIKE THE TRUCK IS GOING TO COME APART. UPON SPEAKING WITH GM IN DETROIT, THEY TELL ME THEY HAVE ELEVATED MY CONCERN TO THEIR ENGINEERING DEPARTMENT, WHEREAS THE DEALERSHIP HAS TOLD ME THEY HAVE BEEN WORKING WITH GM ENGINEERS TO FIX THE TRUCK. THE MECHANICS WHO HAVE BEEN WORKING ON IT ARE CONCERNED WITH THE VIBRATION AS WELL. GM CANNOT TELL ME WHEN OR IF THEY CAN FIX THIS TRUCK OR, WHAT IS TRULY WRONG WITH IT. I TRULY BELIEVE IT IS A SERIOUS SAFETY ISSUE THAT THE BUILDERS OF THE TRUCK CANNOT FIX IT. MAYBE A RECALL IS NECESSARY TO FIGURE OUT WHY THIS GM TRUCK SHAKES AND VIBRATES SO BADLY.

Mileage: 22,000

WHEN SLOWING DOWN AND THEN ACCELERATING AFTERWARD WHILE IN TRAFFIC THE VEHICLE DOES NOT DOWN SHIFT TO THE CORRECT GEAR. THE VEHICLE WILL THEN SPUTTER AND WILL BE VERY SLUGGISH TO ACCELERATE. THIS HAPPENS WHILE IN MOTION AS WELL AS FROM A COMPLETE STOP. I WAS NEARLY REAR ENDED WHILE MAKING A RIGHT TURN INTO TRAFFIC AND THE TRUCK WOULD NOT FIND THE CORRECT GEAR AND THUS WOULD NOT ACCELERATE ENOUGH TO GET OUT OF THE WAY FROM ONCOMING TRAFFIC. SEVERAL TIMES I THOUGHT THAT THE TRUCK WAS GOING TO KILL BECAUSE IT WAS SPUTTERING SO MUCH WHEN IN THE INCORRECT GEAR. TRUCK ALSO WOBBLES MORE THAN USUAL WHEN TURNING AND MAKES A POPPING SOUND IN A TURN. ALSO, RADIO ACTS LIKE IT HAS A MIND OF ITS OWN. NAVIGATION WILL GO HAYWIRE AS IF SOMEONE IS TOUCHING THE SCREEN, BUT NO ONE IS TOUCHING IT. RADIO WILL CHANGE CHANNELS ON ITS OWN AND VOLUME WILL INCREASE AND DECREASE WITHOUT ANY DRIVER INPUT.

Mileage: 1,000

TL* THE CONTACT OWNS A 2015 CHEVROLET COLORADO. WHILE DRIVING UPHILL, THE VEHICLE BEGAN TO JERK FORWARD INDEPENDENTLY WITHOUT WARNING. DURING THE FAILURE, THE TRANSMISSION JUMPED IN AND OUT OF GEAR. THE VEHICLE WAS TAKEN TO A DEALER, BUT THE CAUSE OF THE FAILURE COULD NOT BE DETERMINED. THE DEALER STATED THAT THE VEHICLE COULD NOT BE REPAIRED BECAUSE NO FAILURE CODES WERE GENERATED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. CHEVROLET ASSIGNED AN INVESTIGATOR TO DIAGNOSE THE VEHICLE, BUT THE FAILURE COULD BE DUPLICATED. THE CONTACT MENTIONED THAT THE RECURRENCE OF THE FAILURE CAUSED HER EXTREME NECK PAIN. THE FAILURE MILEAGE WAS APPROXIMATELY 28,000. ....UPDATED 06/23/ 17 *BF *AS

Mileage: 28,000

WHILE STOPPED AND TRYING TO TURN LEFT ON A BUSY HIGHWAY I WAS HIT FROM BEHIND BY A DRIVER WHO DID NOT SEE ME UNTIL IT WAS TO LATE. I SAW HIM IN MY REAR VIEW MIRROR, HOWEVER, BARRELING DOWN AT ME AT A HIGH RATE OF SPEED. I HIT THE GAS TO THE FLOOR TRYING TO GET AWAY FROM HIM BUT MY 2015 V6 COLORADO HESITATED FOR A 1/2 SECOND OR 1 SECOND, I DON'T KNOW. IT SEEMED LIKE FOREVER. IT THEN KICKED IN AND WE GOT ABOUT 100' BEFORE HE SLAMMED INTO THE RIGHT REAR BUMPER. THE IMPACT DROVE THE COLORADO FORWARD ABOUT 10' AND KILLED THE ENGINE. MY WIFE AND I BOTH HIT THE BACK OF OUR SEATS AND BOUNCED FORWARD AND THE SEAT BELTS CAUGHT US. JUST PRIOR TO THE HIT, I WAS LEANING FORWARD AND THUS BOUNCED HARD AGAINST THE SEAT AND THEN BOUNCED HARD AGAINST THE SEAT BELTS; SEEMINGLY IN A VERY SMALL FRACTION OF A SECOND. IT BEEN A YEAR NOW AND I STILL HAVE WHIPLASH SYMPTOMS. MY WIFE WAS ALREADY LEANING BACK AGAINST HER SEAT AND APPARENTLY DID NOT SUFFER ANY WHIPLASH. THE CAR THAT HIT ME WAS TOTALED BUT THE 80 YEAR OLD OCCUPANT WAS JUST SHAKEN UP. HE LEFT ABOUT 30' OF SKID MARKS AND WAS TRYING TO GET AROUND ME TO THE RIGHT. IF THE COLORADO HAD NOT HESITATED, I AM CONFIDENT HE WOULD MISSED ME. THE HIT WAS SO HARD BECAUSE HE HIT THE THE COLORADO'S TOW BAR WHICH DID NOT BEND MUCH THUS TRANSMITTING MOST OF THE FORCE TO THE REST OF THE VEHICLE. FOR A FRACTION OF A SECOND, ACCELERATION WAS INTENSE. I COMPLAINED TO THE LOCAL GM DEALER BUT THEY TOLD ME THE HESITATION WAS DESIGNED INTO THE VEHICLE AND THEY WOULD NOT "FIX" IT.

Mileage: 2,000

COLORADO HAS A GREAT DEAL OF HESITATION AT LOW SPEED WHEN ACCELERATION IS APPLIED. VEHICLE LURCHES, SHRUGS, SPARK KNOCKS, HAS DELAYED THROTTLE RESPONSE....SEEMS TO "CHUG" UNTIL A HEAVY THROTTLE IS APPLIED, THEN THE VEHICLE "JUMPS" TO A GEAR/RPM. VERY DANGEROUS WHEN TRYING TO ACCELERATE NORMALLY AND "GET OUT OF THE WAY" OF OTHER TRAFFIC OR JUST CLIMB A SLIGHT INCLINE. CHEVROLET DEALERSHIP SAYS THIS IS "NORMAL". THIS MAY BE NORMAL FOR CHEVROLET, BUT IT CERTAINLY IS NOT ACCEPTABLE FOR THE CONSUMER THAT WANTS A RESPONSIVE THROTTLE WHEN ACCELERATION IS REQUIRED...... THIS HAS BEEN AN ON-GOING ISSUE WITH THE TRUCK SINCE IT WAS PURCHASED NEW IN APRIL 2015.

Mileage: 100

TRANSMISSION DOES NOT DOWNSHIFT WHEN RPM'S FALL TO 1000 DUE TO SLOWING TRAFFIC, TURNING, ETC. WHEN TRYING TO ACCELERATE NORMALLY VEHICLE LUGS AND HESITATES AND WILL NOT ACCELERATE. IF THROTTLE IS SIGNIFICANTLY INCREASED THE TRANSMISSION DOWNSHIFTS SEVERAL GEARS AND ACCELERATES RAPIDLY. THE HIGHER THE LOAD ON THE VEHICLE (IE. A/C OR GOING UPHILL) AND THE HIGHER THE AMBIENT TEMPERATURE THE WORSE THE PROBLEM GETS. WHEN CRUISE CONTROL IN ENGAGED THE VEHICLE WILL SLOW DOWN AS MUCH AS 4 MPH BEFORE DOWNSHIFTING TO MAINTAIN SET SPEED. THIS IS A SAFETY HAZARD DUE TO LACK OF ACCELERATION WHEN REQUIRED AND ALSO SUDDEN RAPID ACCELERATION WHEN VEHICLE FINALLY DOES DOWNSHIFT. GENERAL MOTORS ENGINEERING STATES THAT THIS IS DUE TO DESIGN TO INCREASE FUEL MILEAGE AND REFUSES TO ADDRESS THE PROBLEM. THIS PROBLEM HAS BEEN PRESENT SINCE I PURCHASED THE VEHICLE NEW IN APRIL OF 2015.

SIMILAR TO OTHER COMPLAINTS, THE VEHICLE NEARLY STALLS WHEN TAKING OFF FROM A STOP. THE TRANSMISSION IS IN THE WRONG GEAR AND THE ACCELERATION IS VERY LIMITED UNLESS THE GAS PEDAL IS PUSHED DOWN FULLY. THIS CAUSES A VERY DANGEROUS SITUATION PARTICULARLY WHEN TURNING LEFT AT INTERSECTIONS AS THE VEHICLE WILL NEARLY STALL OR MOVE AT A VERY SLOW PACE. THIS HAS BEEN HAPPENING SINCE DAY 1.

Mileage: 24,000

WHEN STOPPED OR MAINTAINING A LOW SPEED (E.G. IN TRAFFIC) WHEN THE ACCELERATOR IS SLIGHTLY PRESSED THE TRUCK WILL HESITATE AND HAVE A SLIGHT JERKING MOTION. WILL NEED TO ALMOST FULL PRESS THE ACCELERATOR TO GET THE TRUCK MOVING. BROUGHT THE TRUCK TO THE DEALER ON 3 SEPARATE OCCASIONS JUST FOR THEM TO SAY THAT THERE IS NOTHING WRONG AND THAT HESITATION & JERKING IS 'NORMAL'. THE 'NORMAL' DIAGNOSIS DROVE ME TO DO SOME RESEARCH ON THIS ISSUE AND COME TO FIND OUT THAT OTHER PEOPLE WITH THE SAME MAKE, MODEL, YEAR ARE HAVING THE SAME ISSUES. I HAVE NOTICED THIS ISSUE SINCE I HAD PURCHASED THE VEHICLE BACK IN AUGUST 2015.

HESITATION WHEN ACELARATING BAD ALMOST GOT IN WRECK TOOK TO CHEVY DEALER THEY KNOW ABOUT IT WOULD NOT DO ANYTHING ABOUT IT ONLY HAS 9050 MILES ON IT. IN MOTION.

Mileage: 9,050

TRUCK TRANSMISSION DOES NOT DOWN SHIFT WHEN SLOWING DOWN AT TIMES OR WHEN TAKING OFF FROM A STOP LIGHT. RETURNED TO DEALER TWICE AND SECOND TIME THEY DID A SOFTWARE UPDATE BUT STILL DOING SAME PROBLEM. DEALER SAY'S TRUCK NORMAL. WAITING FOR AN ACCIDENT BECAUSE TRANSMISSION WILL NOT SHIFT CORRECTLY ALSO NOT SHIFTING CORRECTLY AT TIMES WHEN PASSING OTHER VEHICLES.

Mileage: 10

TL* THE CONTACT OWNS A 2015 CHEVROLET COLORADO. AFTER THE VEHICLE WAS STARTED, IT HESITATED TO ACCELERATE FORM A STOP. THE FAILURE RECURRED THREE TIMES. THE VEHICLE WAS TAKEN TO A LOCAL DEALER WHERE THE TECHNICIAN STATED THAT THE TRANSMISSION NEEDED TO BE SERVICED. THE VEHICLE WAS REPAIRED. AFTER THE REPAIR, THE VEHICLE EXPERIENCED OCCASIONAL STALLING. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 18,000. ...UPDATED 09/14/16 *BF

Mileage: 18,000

TL* THE CONTACT OWNS A 2015 CHEVROLET COLORADO. WHILE DRIVING VARIOUS SPEEDS, THE ACCELERATOR PEDAL WAS DEPRESSED BUT THE VEHICLE HESITATED BEFORE ACCELERATING. THE FAILURE RECURRED ON NUMEROUS OCCASIONS. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE VEHICLE FUNCTIONED AS INTENDED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 6,000.

Mileage: 6,000

VEHICLE BUCKS AND HESITATES WHEN PRESSING GAS PEDAL RIDING IN 6TH GEAR AT SPEEDS UP TO 50MPH. IF YOU GIVE IT GAS IT GETS WORSE AND FINALLY AFTER 5 SECS IT WILL DOWN SHIFT 2 OR 3 GEARS AND GO WAY TO FAST. I HAVE TAKEN IT TO DEALER TWICE AND THEY SAID TRANSMITION WAS STILL IN LEARNING MODE AND SHOULD CLEAR UP. WELL ITS AT 15,000 MILES AND STILL HAS PROBLEM. IF I PUT IT TOW MODE IT DOES NOT HAPPEN...SHIFT POINT CALIBRATION IS NEEDED BADLY ON THIS TRUCK

Mileage: 2,750

TRUCK HAS 11K MILES. WHEN BREAKING AT LOW SPEEDS, I GET A LOT OF BREAK SQUEAL. THIS HAPPENS DRIVING FORWARD OR IN REVERSE. ALSO, WHEN DRIVING THE TRUCK HAS A HARD TIME SHIFTING AND MAKES A RATTLING/PINGING NOISE WHEN IT IS TRYING TO FIND THE CORRECT GEAR. THIS HAPPENS SPORADICALLY WHEN DRIVING SLOW, FAST, UPHILL, AND MOSTLY OCCURS DURING ACCELERATION. THE SHIFTING ISSUE HAPPENS ON THE FREEWAY AS WELL AS CITY STREETS.

Mileage: 8,500

SIMILAR TO OTHER COMPLAINTS, THE VEHICLE NEARLY STALLS WHEN TAKING OFF FROM A STOP. THE TRANSMISSION IS IN THE WRONG GEAR AND THE ACCELERATION IS VERY LIMITED UNLESS THE GAS PEDAL IS PUSHED DOWN FULLY. THIS CAUSES A VERY DANGEROUS SITUATION PARTICULARLY WHEN TURNING LEFT AT INTERSECTIONS AS THE VEHICLE WILL NEARLY STALL OR MOVE AT A VERY SLOW PACE.

Mileage: 1,000

TL* THE CONTACT OWNS A 2015 CHEVROLET COLORADO. WHILE DRIVING 20 MPH AND DOWNSHIFTING IN MANUAL MODE, THE VEHICLE LUNGED FORWARD. THE VEHICLE WAS TAKEN TO THE DEALER TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE VEHICLE WAS FUNCTIONING AS DESIGNED. THE CONTACT ALSO STATED THAT THE ACCESS DOOR SENSORS FAILED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURES. THE APPROXIMATE FAILURE MILEAGE WAS 90.

Mileage: 90

WHEN DRIVING AT LOW SPEEDS, IT FEELS LIKE THE TRANSMISSION IS IN THE WRONG GEAR, BECAUSE WHEN YOU NEED A FAST ACCELERATION, THE CAR BUCKS AND ALMOST FEELS LIKE IT'S GOING TO STALL. IT SEEMS LIKE IT IS SEARCHING FOR THE RIGHT GEAR AND THEREFORE IT TAKES TIME TO REACT. I HAVE BEEN ON A FEW CLOSE CALLS, ALMOST GOT INTO AN ACCIDENT A COUPLE OF TIMES BECAUSE OF THIS BUCKING AND DELAY ON REACTING WHEN YOU NEED TO GET THE POWER FROM THE ENGINE.

Mileage: 8,000

LIKE MANY OF THE OTHER COMPLAINTS LISTED FOR THIS VEHICLE. THIS PROBLEM ROUTINELY AND REPEATEDLY OCCURS ON BOTH STREET AND HIGHWAY DRIVING. AFTER SLOWING DOWN AND DEPRESSING THE ACCELERATOR, THE AUTOMATIC TRANSMISSION WILL STUMBLE AND HESITATE. BECAUSE THE VEHICLE WON'T READILY ACCELERATE, THE GAS PEDDLE IS DEPRESSED FURTHER AND THEN THE AUTOMATIC TRANSMISSION WILL DOWNSHIFT TOO MANY GEARS AND EXCESSIVE ACCELERATION AND ENGINE RPM FOLLOWS. THIS PROBLEM CAUSES EXCESSIVE ACCELERATION, WHICH COULD PLACE THE VEHICLE AND ITS OCCUPANTS INTO AN UNSAFE TRAFFIC SITUATION AND POTENTIALLY CAUSE ACCIDENT AND/OR INJURY. THE DEALER SERVICE WRITER WAS ASKED ABOUT THIS SITUATION AND RESPONDED THAT "THE TRANSMISSION WAS SEEKING THE BEST GEAR TO MAXIMIZE GASOLINE MILEAGE PERFORMANCE", WHICH REALLY DOESN'T SEEM TO MAKE SENSE IN THIS SITUATION.

Mileage: 6,356

WHEN STARTING UP A HILL, AT A SLOW SPEED, THE TRANSMISSION, WILL HESITATE, ALMOST STOP, UNTIL THE GAS PEDAL IS PUSHED DOWN TO GET THE VEHICLE MOVING. THIS IS AN ONGOING PROBLEM, I HAVE BEEN TOLD BY DEALER, THAT THE TRANSMISSION IS ADAPTING TO MY DRIVING STYLE, AND WILL SOON IMPROVE.

Mileage: 1,645

THE TRANSMISSION WON'T DOWNSHIFT WHILE TRYING TO ACCELERATE AFTER SLOWING DOWN. THE TRUCK WILL START TO VERY NOTICEABLY CHUG AND JERK AND NOT WANT TO GO FROM NOT DOWNSHIFTING WHEN BRAKING AND THEN TRYING TO ACCELERATE. I HAVE BEEN CLOSE TO GETTING REAR ENDED WHEN THIS HAPPENS AND TO AVOID IT I HAVE TO STOMP ON THE GAS PEDAL WHICH THEN CAUSES IT TO JERK ERRATICALLY FROM DOWNSHIFTING TOO FAR AND CAUSING ME TO ACCELERATE TOO FAST AND ALMOST REAR ENDING THE VEHICLE IN FRONT OF ME. THIS HAPPENS EVERY TIME I SLOW DOWN TO GO AROUND SOMEONE TURNING OR SLOWING DOWN TO STOPPED TRAFFIC AND THEN ACCELERATING AGAIN. WHILE DRIVING WITH MY WIFE AT AROUND THE 200 MILE MARK IT STARTED CHUGGING BADLY AND SHE THOUGHT WE WERE BREAKING DOWN. IT IS VERY EMBARRASSING WHEN SOMEONE IS RIDING WITH ME BECAUSE NO VEHICLE SHOULD ACT LIKE THIS. GM SHOULD BE ASHAMED OF THEMSELVES. I HAVE ABOUT 10,500 MILES ON MY TRUCK RIGHT NOW AND THIS ISSUE HAS BEEN A SERIOUS ISSUE SINCE I DROVE IT OFF THE LOT BRAND NEW. TOOK IT TO THE DEALER AND THEY SAID IT SHOULD TAKE A COUPLE SECONDS TO SHIFT FROM GEAR TO GEAR. ITS FUNNY BECAUSE I HAVE DRIVEN A LOT OF VEHICLES AND NONE OF THEM HAVE DONE THAT OR TOOK THAT LONG TO SHIFT. I KNOW THE TRANSMISSION IS SUPPOSED TO ADAPT TO YOUR DRIVING...WHICH SEEMS VERY UNNECESSARY TO ME BUT OBVIOUSLY IT IS NOT WORKING OUT FOR THE COLORADOS. ADAPTIVE TRANSMISSIONS NEED TO GO AND PUT A FIRM SPORTY SHIFTING TRANSMISSION IN THESE TRUCKS.

PURCHASED TRUCK IN NOVEMBER 2014. CREW CAB Z71. HAD PROBLEMS RIGHT AT 200 MILES. THEY SAID THE TRANSMISSION HAS TO LEARN MY STYLE OF DRIVING. AT 2,00 MILES TRANSMISSION AND ENGINE STILL DON'T TALK TO EACH OTHER. I CAN ACCELERATE AND 5 SECONDS OR MORE LATER THE TRANSMISSION REACTS. IN HEAVY TRAFFIC, A COUPLE OF CARS GET BETWEEN ME AND THE CAR I WAS FOLLOWING BEFORE IT REACTS AND I HAVE TO SLAM THE BREAK. ALWAYS SEEMS TO BE IN THE WRONG GEAR. WILL CHUG A LOT UNTIL IT GETS UP TO THE SPEED FOR THAT GEAR. TOOK IT TO DEALER AT OIL CHANGE AND THEY RESET THE CONTROL MODULE. AFTER 2,000 MORE MILES, TOOK IT BACK BECAUSE IT STILL ACTED THE SAME WAY. TOOK TECH ON DRIVE AND WAS ABLE TO DUPLICATE ALL MY CONCERNS. HE SAID THAT THERE WAS NOTHING HE CAN DO AND THAT I NEEDED TO WAIT FOR ECM CALIBRATION FROM GM. HE SAID HE FELT BAD FOR ME. SURELY I WILL GET IN AN ACCIDENT BECAUSE OF THIS SLOW TRANSMISSION THAT IS ALWAYS IN THE WRONG GEAR. CURRENTLY I AM AT 7,000 MILES. THE ONLY THING THE TECH COULD SAY WAS NOT TO DRIVE IT IN STOP AND GO TRAFFIC....SERIOUSLY. CLEARLY THIS ADAPTIVE TRANSMISSION IS BULL CRAP AND GM PROBABLY KNOWS THEY HAVE A PIECE OF CRAP PROGRAMMING BUT CAN'T FIGURE IT OUT. PLEASE FIGURE OUT THIS SHIFTING PROBLEM, BECAUSE OTHER THAN THIS THE TRUCK IS NICE...TOO BAD, BECAUSE IF THEY DON'T SOMEONE WILL GET IN AN ACCIDENT AND HOPEFULLY IT WILL NOT BE FATAL. GET REAR ENDED BECAUSE IT DOESN'T ACCELERATE WHEN YOU NEED IT TO, OR IT FINALLY MOVES WHEN YOU ARE NEEDING TO BREAK. FIX THIS NOW OR AT SOME POINT YOU WILL PAY BIG....

Mileage: 2,000

PURCHASED 2015 COLORADO IN AUGUST. WHILE DRIVING IT I HAVE NOTICED THERE IS A PROBLEM WITH THE TRANSMISSION AND ENGINE SYNCHRONIZATION BETWEEN DOWN SHIFTING AND MAINTAINING PROPER RPM'S. WHEN DRIVING A STEADY SPEED IN TRAFFIC AND YOU NEED TO SPEED UP A LITTLE THE TRANSMISSION DOES NOT DOWN SHIFT. WHEN YOU GIVE IT GAS TO SPEED UP THE ENGINE THE RPMS ARE TO LOW AND THE ENGINE BUCKS AND IS LUGGING VERY BADLY. YOU ARE AT A POINT IT FEELS LIKE IT WILL STALL. THIS LUGGING HAS TO BE BAD FOR ENGINE. IF YOU PRESS DOWN HARDER ON THE ACCELERATOR THE TRANSMISSION WILL DOWN SHIFT SUDDENLY AND THE TRUCK WILL SURGE FORWARD QUICKLY. I HAVE ALMOST RUN INTO THE REAR OF VEHICLES WHILE IN TRAFFIC AND TRYING TO MAINTAIN FLOW SPEED.

Mileage: 420

I WANTED TO REACH OUT TO YOU ON CHEVROLET?S CLAIM THAT THEIR ENGINE ACHIEVES 305 HORSEPOWER. WHILE IT MAY BE TRUE THAT THEIR ENGINE ACHIEVES THIS FIGURE IT DOES SO AT A STATED 6800 RPM. THE 6800 FIGURE IS IMPORTANT TO NOTE BECAUSE THE TRUCKS? RED LINE INDICATING POTENTIAL DANGEROUS OPERATING CONDITIONS START AT 6500 RPM. SO IN ESSENCE IN ORDER FOR AN OWNER TO ACHIEVE 305 HP THEY WOULD HAVE TO BE OPERATING THEIR TRUCK IN A POTENTIALLY DANGEROUS MANNER. EVEN IN THE 2015 COLORADO OWNER?S MANUAL IT INDICATES THE DANGER OF OPERATING ABOVE THE REDLINE? ?DO NOT OPERATE THE ENGINE WITH THE RPM?S IN THE WARNING AREA.? GM IS STATING THAT SOMEONE CAN ACHIEVE MAXIMUM HP ONLY BY OPERATING THE VEHICLE IN A DANGEROUS MANNER....REALLY?! I BELIEVE IT WILL ONLY BE FAIR FOR CHEVROLET TO RE-EVALUATE THEIR MAXIMUM HORSEPOWER PRIOR TO THEIR ENGINE HITTING THE REDLINE. *TR