2015 Chevrolet Impala transmission problems

POWER TRAIN

The contact owns a 2015 Chevrolet Impala. The contact stated while driving approximately 70 MPH, the transmission was slipping and unexpectedly downshifted to a lower gear. The contact stated that the vehicle violently shuddered. The contact stated that the check engine and stability control warning lights were illuminated. The contact stopped the vehicle due to the shaking and shuddering and had the vehicle towed to a dealer. The dealer diagnosed the vehicle and determined that the Transmission Control Module and a wiring harness needed to be replaced. The vehicle was repaired. The contact stated that the failure recurred two more times. The contact had taken the vehicle to the same dealer, and the TCM was replaced. The vehicle was repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 84,000.

NHTSA complaint #11654813 — an unverified report by a vehicle owner.

POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER

The contact owns a 2015 Chevrolet Impala. The contact stated while driving at an undisclosed speed, the vehicle downshifted and shuddered abnormally. There was no warning light illuminated. The vehicle was restarted; however, the failure recurred. The vehicle was taken to the dealer to be diagnosed. The contact was informed that the torque converter had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 171,000.

NHTSA complaint #11610234 — an unverified report by a vehicle owner.

POWER TRAIN

The contact owns a 2015 Chevrolet Impala. The contact stated that while the transmission was in drive(D) with the vehicle idling on an incline, the vehicle inadvertently rolled backwards. The contact indicated that the brake pedal had to be depressed to stop the vehicle from rolling backwards down the hill. The cause of the failure was not yet determined. The manufacturer and local dealer were not yet notified of the failure. The failure mileage was 136,000.

NHTSA complaint #11519296 — an unverified report by a vehicle owner.

POWER TRAIN

Automatic transmission shifting problems. Shifting from starting to any kind of incline resistance, car can not shift through first 2 gears. Shaking, rumbling, check engine light flashing, engine bogs, car slows down, causing safety concerns. Had car checked at dealer. Reprogramed transmission. Did not fix it!

NHTSA complaint #11447296 — an unverified report by a vehicle owner.

POWER TRAIN

The manufacturer patented Stabilitrak system continues to fail on my vehicle. Initial ODI 114406439. Dealership charged $1,7832.15 to replace transmission control module (TMC) on 11/5/21. On 12/22/21 vehicle indicated the exact issue (Service Stabilitrak), took vehicle to same dealership, awaiting response. The car is not drivable when "Service Stabilitrak" is indicated as engine power is substantially reduced. GM technical service bulletin PIC5992A seems to apply to my issue. However, Chevrolet and the dealership says it does not apply, but continue to charge for engine light analysis and unnecessary, expensive repairs. Your assistance would be greatly appreciated. Vehicle is once again inoperable (3/4/22) due to this issue (service stabilitrak). Consumer stated almost $3,000 was spent with no resolution. Consumer stated vehicle fixed with used parts from a junk yard— new parts were not available.

NHTSA complaint #11444992 — an unverified report by a vehicle owner.

POWER TRAIN

The stabilitrak system GM installed on my vehicle repeatedly indicates a "service" notification. Once this occurs, my vehicle loses power and the ability to shift into any driving mode. This issue began around 60,000, I currently have 77,500+ on my vehicle. GM issued a technical service bulletin (PIC5992A) for my vehicle, however, denies it's the issue and will only attempt a repair from a computer code, which they continue to fail to replicate. The occurrence of this issue is especially worrisome on any interstate highway. ODI 11406439

NHTSA complaint #11437787 — an unverified report by a vehicle owner.

POWER TRAIN

WHEN I PUT MY CAR IN PARK IT ROLLS BACK LIKE IT'S A MANUAL IT DOES IT ALSO WHEN I AM IN REVERSE AND GO TO DRIVE. ALSO WHILE DRIVING MY GEAR SHIFT IF SOMEONE TOUCHES IT OR HITS IT WILL GO FROM DRIVE TO NEUTRAL WORRIED IT WILL GO TO PARK OR SOMETHING DANGEROUS ABOUT TWO YEARS THE VEHICLE ITS DONE THIS THE DEALERSHIP SAID NORMAL AND IT IS NOT.

NHTSA complaint #11435198 — an unverified report by a vehicle owner.

POWER TRAIN

I HAVE REPLACED MY HUB BEARINGS ON MY BOTH FRONT TIRES TWICE . I CONTINUE TO GET A GRINDING NOISE AND JERKING WHILE I'M TRYING TO ACCELERATE. WHILE REVERSING, TURNING LEFT OR RIGHT THIS HAPPENS. ALSO DOESN'T MATTER THE SPEED. THIS IS VERY DANGEROUS AS IT ALMOST CAUSED ME TO GET INTO SEVERAL ACCIDENTS. I PUT MY MONEY AND TRUST INTO CHEVY. THIS SHOULD BE ABSOLUTELY BE A RECALL.

NHTSA complaint #11407807 — an unverified report by a vehicle owner.

POWER TRAIN

THERE IS A SLIGHT VIBRATION AROUND 20 TO 30 MPH AS GEARS ARE SHIFTING AND IT GOES AWAY...DOES IT REPEATEDLY AT SAME POSITION AND EVERYTHING GOES BACK TO NORMAL...NO CODES OR LIGHTS ON DASH HAPPENS MOSTLY IN MOTION ON INCLINES AND EVEN GROUND AT SAME SPEED GROUPING

NHTSA complaint #11391100 — an unverified report by a vehicle owner.

POWER TRAIN

TL* THE CONTACT OWNS A 2015 CHEVROLET IMPALA. WHILE DRIVING, THE SPEED FAILED TO EXCEED 50 MPH AND THE CHECK ENGINE INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO COURTESY CHEVROLET BUICK GMC (1220 E STONE DR, KINGSPORT, TN 37660, (423) 343-5036) WHERE IT WAS DIAGNOSED THAT THE TRANSMISSION FLUID WAS DIRTY AND NEEDED TO BE FLUSHED. THE VEHICLE WAS REPAIRED. THE VEHICLE WAS TAKEN TO JACKSON CHEVROLET BUICK GMC (1975 N MAIN ST, LAFAYETTE, GA 30728,(706) 638-4222) WHERE IT WAS DIAGNOSED THAT THE TRANSMISSION SENSOR NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS 79,361.

NHTSA complaint #11222141 — an unverified report by a vehicle owner.

POWER TRAIN

WHILE I WAS DRIVING DOWN AN INTERSTATE IN HEAVY TRAFFIC (RUSH HOUR) GETTING READY TO MERGE ONTO ANOTHER INTERSTATE THE VEHICLE LUNGED VIOLENTLY JOLTED AND LOST POWER. AT THAT TIME I WAS DRIVING (CRUISE CONTROL OFF) AT 60MPH, THE DISPLAY LIGHTS ON THE DASHBOARD CAME ON STATED: STABILITY CONTROL, TRACTION CONTROL,CHECK ENGINE CAME LIGHT ON, AND VEHICLE RAPIDLY SLOWING. I WAS ABLE TO MOVE TO THE RIGHT LANE AND ACCESS AND EXIT RAMP. ONCE THAT HAPPENED YOU CAN'T GET VEHICLE TO MOVE WHEN PRESSING ON THE GAS PEDAL. I PUT IT IN PARK, TURNED OFF THE VEHICLE. I WAITED FOR A FEW MINUTES THEN TURNED ON THE CAR. THE CHECK ENGINE LIGHT REMAINED ON. VEHICLE HAS DONE THIS A FEW OTHER TIMES HOWEVER; NO CODES COME BACK WHEN DIAGNOSED AS THE CHECK ENGINE LIGHT TURNS ITSELF OFF. THIS SEEMS TO BE A MAJOR ISSUE HOWEVER; GM DOESN'T WANT TO ACCEPT RESPONSIBILITY AND FIX THEIR ISSUE TO MAKE THEIR VEHICLES SAFE. I AM TERRIFIED OF DRIVING THE VEHICLE AND CONSIDER MY EXPERIENCE LUCKY IN THE FACT NO ACCIDENT HAPPENED HOWEVER; I AM NOW PAYING TO HAVE MY CAR PARKED IN A LOT WAITING FOR GM.

NHTSA complaint #11129666 — an unverified report by a vehicle owner.

POWER TRAIN

VEHICLE MAKES WINDING NOISE WHEN MAKING RIGHT HAND TURN AND HESITATES TO TAKE OFF WHILE ENTERING TRAFFIC. HAZARD AND CAN CAUSE INJURY OR FATALITY.

NHTSA complaint #11073438 — an unverified report by a vehicle owner.

POWER TRAIN

THIRD ISSUE WITH LOSS OF POWER. THIS TIME, STARTED CAR. THE CAR WAS FIGHTING FOR AIR FOR A FEW SECONDS, WITH STABILITRAK AND ENGINE LIGHT ON. I SHUT THE CAR OFF IMMEDIATELY. RESTARTED AFTER A FEW SECONDS. THE ENGINE LIGHT REMAINS ON. SERVICE IS STATING HISTORY SAYS MISFIRE ON 2 CYLINDERS, BUT NO CODE THROWN AND CANNOT DIAGNOSE. WE CAN GUESS AND PAY $350 FOR THE GUESS, OR NOT GUESS AND PAY $125 FOR THE DIAGNOSTICS THAT WERE RAN. (!!!) WHAT IN THE WORLD...

NHTSA complaint #11041377 — an unverified report by a vehicle owner.

POWER TRAIN

INITIALLY IT STARTED OUT WITH LOSING ALL LIGHTING CONTROL DURING DRIVING FOR ABOUT 10SEC AFTER WHICH IT COMES BACK ON. THIS WHEN ON ARE ABOUT TWO MONTHS AND ABOUT A WEEK AGO, I STARTED GETTING THE ERROR MESSAGE 'POWER STEERING DRIVE WITH CARE' WHICH ALTERNATES WITH ANOTHER ERROR MESSAGE 'STABILITRAK'. EACH TIME THIS COMES ON DURING DRIVING, THE CAR JERKS A LITTLE WITH THE EMERGENCY PARK LIGHT FOR ABOUT 2SEC AND IF I WERE DRIVING WITH THE CRUISE CONTROL ON, IT AUTOMATICALLY DISABLES IT. THIS IS REGARDLESS OF HOW FAST AM DRIVING.

NHTSA complaint #10826043 — an unverified report by a vehicle owner.

POWER TRAIN

CAR WAS TRAVELING AT 79 MPH ON HIGHWAY IN CRUISE CONTROL WHEN CAR LOST ALL POWER (ENGINE, EXTERIOR/INTERIOR LIGHTS, BRAKES, ETC.) WAS ABLE TO GET CAR TO THE SHOULDER, AND RESTART THE VEHICLE. LATER DETERMINED THE ISSUE TO BE WITH THE KEY. A SLIGHT BUMP OF THE KEY, E.G. TAPPING THE ATTACHED KEYRING OR HITTING A BUMP WHILE DRIVING, CAUSES THE CAR TO TURN OFF . THIS WAS A RENTAL CAR RENTED FROM BUDGET.

NHTSA complaint #10811458 — an unverified report by a vehicle owner.