2015 Chevrolet Impala: check engine light

Filed Apr 15, 2025 · Transmission · 84,000 miles · FL

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.

Filed Feb 26, 2023 · Driver assistance · IL

My side detection system has failed and not working on my 2015 ltz. Blind spot light stays on even when car is off. It’s causing other lights going crazy on and off. No check engine light on just the side blind spot indicator lights stay on. My car only has 70k miles it’s been happening for 1 wk I’m afraid to drive it after reading online that a clients impala nearly caught on fire. I’m reading that there is a recall with 2015 impala # n172097060 side blind zone alert module water intrusion. Please advise if there is anything Chevy/GM can do for me. I’m afraid to drive car and feel it’s a hazard driving around with faulty blind spots light.

Filed Oct 5, 2022 · Electrical · 140,000 miles · TX

The contact owns a 2015 Chevrolet Impala. The contact stated that the check engine warning light was illuminated. The vehicle was taken to an independent mechanic where a code reader determined that there was a defect with the dual battery control module. The mechanic recommended that the module and both batteries be replaced. The dealer nor the manufacturer was notified of the failure. The vehicle had been repaired. The failure mileage was approximately 140,000.

Filed Feb 26, 2022 · Driver assistance · VA

The "service stabilitrak" light and engine light has returned making the vehicle non-operational once again. I have spent over $2500 in the past 12 months at an authorized Chervrolet dealership attempting to repair this exclusive, patented General Motors safety system, however, the system continues to malfunction. I cannot be the only owner of a GM vehicle with this frustrating, expensive issue. Please assist with a recall and/or inquiry to GM/Chevrolet. Previous the federal safety agency tracking number 11444992.

Filed Jan 13, 2022 · Transmission · UT

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!

Filed Dec 26, 2021 · Transmission · VA

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.

Filed Aug 12, 2020 · Engine · 100,000 miles · MI

When accelerating, the vehicle revs to high rpms and a loss of power to the wheels occurs. This happens most notably when accelerating to pass while cruising at speeds of 50mph and up. Check engine light appeared and code p16cf was given and tracked directly to the variable timing oil control valve.

Filed Oct 24, 2019 · Acceleration, Airbags · 86,000 miles · TX

My check engine light came on while driving. I told my car to the mechanic and I was told my mass engine airflow needed to be replaced. Two days later the check engine light was on again. Return to the mechanic and was told my o2 sensors needed to be replaced. Replaced as recommended. I was driving down the highway and the light came on again along with a message that said reduce speed. At this point, my car slowed down by itself while I was going 60 miles per hour. I could not accelerate. Luckily there were no cars behind me. Reviewing the chevrolet forums and impala forums, this appears to be a known issue and gm is not doing anything about it. Reading some of the stories, I consider myself lucky. Airbag the passenger airbag light has come on and will not go off. I took it to the dealership, and they told me that if I am in an accident, the airbag will not deploy because the car isn't recognizing someone is in the seat. They said to me that gm issued a recall for this problem; however, my car was not included. I spoke with a gm representative who confirmed the recall. The gm representative said although the code is shown on the diagnostic performed at the certified dealer my VIN was not covered; however, they offered to cover half of my cost. He told me that if gm expanded the recall to include my VIN then I could send in my receipt for a refund.

Filed Jun 24, 2019 · Transmission · 79,361 miles · GA

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.

Filed May 30, 2019 · Airbags, Electrical · 98,700 miles · GA

My service airbag light as well as check engine light go on and off with no apparent reason. I believe an electrical issue.

Filed Jan 25, 2019 · Engine, Fuel system · 45,000 miles · IN

While driving my car suddenly the information area on the dash board said "service stabil a track " "service traction control" and "power to engine reduced" then the service engine light came on. When I took it to the dealership the service rep told me that I would need to replace the high pressure fuel pump and the fuel feed pipe. He asked if I was using e85. I told him I was and he told me that e85 causes that damages in the chevrolet vehicles and is why he won't use it in his own vehicle. The owner's manual encourages useing e85. Gm will not pay to repair this even though I followed their owner's manual.

Filed Nov 3, 2018 · Driver assistance, Fuel system · 75,000 miles · MO

Fuel pump causing weak engine and stabil track service light. Dealer diagnosed. As I was driving the vehicle suddenly lost power, stabil track service and check engine lights. Message warning of decreased engine power.