CHEVROLET Complaints

While driving normally, I was in the middle of a busy highway/intersection when the vehicle suddenly lost power and came to a complete stop. The vehicle shut itself off without warning, leaving the Corvette disabled in the roadway and causing a complete blockage of the road/intersection. Traffic was actively traveling around me, creating a serious safety hazard and putting both myself and other motorists at risk of a collision. After the vehicle stopped, it would not restart. The instrument cluster displayed a theft-deterrent/immobilizer warning and a lock/security symbol, along with a message stating that there could be a problem with the theft-deterrent system and referring to Immobilizer Operation. The vehicle has full electrical power, but when attempting to start it, it only clicks and the engine does not crank or start. I placed the key fob in the designated backup location as instructed in the owner’s manual, but the vehicle still would not start. The exact failed component has not yet been diagnosed or confirmed. The vehicle is available for inspection. The sudden and unexpected loss of power while I was in the middle of a busy highway/intersection caused an immediate and serious safety concern because the vehicle became completely disabled and blocked the roadway.

Safety Issue. The raised cruise control speed set button on the steering wheel is prone to being touched when rotating the steering wheel while making sharp turns when driving through parking lots at low speed. If the distance cruise was previously set at say 45 mph the last time it was used, and the set button is very briefly hit upward when rotating the wheel through your hands to the left, it can inadvertently cause the truck to start accelerating to that previously-set speed. The cruise button needs to be programmed such that at certain steering angles it will not respond to inputs. This is very dangerous. I ave had this happen to me at least 5 times. Hitting the brakes stopped the acceleration. I reported it to the dealer as a potential engine surge but they could not reproduce it. I just recently realized what was happening. I believe this can easily be addressed by a steering angle lockout of the button. Other issues: Drivetrain vibrates occasionally and shifts very hard (drivetrain literally slams through gear change) when leaving driving from a stop a slow speeds. Dealer cannot replicate. This diesel truck gets very poor mileage possibly from spending too much time in regeneration mode. Truck is super sensitive to fuel. Mileage varies drastically from fill up to fill up depending upon station. I believe the fuel cetane content affects regeneration in unexpected ways. I buy fuel at name brand stations but mileage varies drastically from vendor to vendor. Mileage average goes down to about 11 mpg much of the time due to time in regeneration. Dealer has no comments. I know HD trucks don't have official mileage ratings but this is just crazy. I drive light on the accelerator. Rarely achieved up to 21 mpg but average mileage runs about 11-12. I believe this to be a fault with these trucks as I have read complaints from many others. The infotainment system frequently loses all audio, including turn signal sound, nav. GM has no fix. Possibly software.

Fuel pulp module failed on highway. Was told there is not a recall on my VIN even tho online there is a recall and known issue for the part

The check engine light illuminated on my 2024 Chevrolet Trax at 36,883 miles. An authorized Chevrolet dealer, Advantage Chevrolet of Bridgeview in Bridgeview, Illinois, diagnosed a failed evaporative emission canister purge pump and replaced it on August 6, 2026. I paid $729.46 out of pocket. I am filing this complaint because General Motors has already identified this exact part as defective and extended warranty coverage for it — but not for my model year. The part installed in my vehicle, shown on my invoice, is GM part number 25207556. That part number is listed by name in the Parts Information table of GM Special Coverage bulletin N242484740, which identifies four interchangeable evaporative emissions canister purge pumps: 12741165, 12741163, 25207556, and 12726033. That bulletin extends coverage on this component to 15 years or 150,000 miles for the 2022 Chevrolet Trax, 2022 Silverado 1500, 2022-2023 Blazer, and multiple Buick, Cadillac, and GMC models. A prior program covered 2020-2021 vehicles. My 2024 Trax failed with the same part number GM covers for fifteen years on the 2022 Trax. The failure occurred at 36,883 miles — five days after my 3-year bumper-to-bumper warranty expired on August 1, 2026, based on an in-service date of August 1, 2023. The failure illuminates the malfunction indicator lamp, which masks any other diagnostic trouble code that may set behind it, increases evaporative hydrocarbon emissions, and causes automatic failure of Illinois OBD-based emissions inspection. GM has now issued purge pump coverage extensions twice, for 2020-2021 and again for 2022-2023 vehicles. The same component is failing on 2024 vehicles at comparable mileage. I believe the defect extends to the 2024 and later model years and that coverage should be extended accordingly.

In May 2026 while driving home from her job in downtown St. Louis, my daughter was driving my equinox. While traveling on the highway at the speed limit of 55 miles an hour her brakes failed and she came within a few feet of rear ending a full gas tanker truck. She was able to maneuver to the shoulder of the highway and avoid an accident. After a few moments of the engine, idling the engine completely stopped working and shut down. After having the car towed to my local mechanic at a Midas shop, they began the diagnosis. I began similar research online to find cases of similar things happening. What was diagnosed is that the vacuum pump on the brake line was faulty and broke. Pieces of this pump made their way into my engine and ruined two of the cylinders in my engine. The car is now not drivable and needs a replacement engine. Chevy knew about this faulty, vacuum pump part and they did issue recalls on other vehicles using the same part. They have also issued technical bulletins to their technicians for a diagnosing this failed vacuum pump. I have tried to contact Chevy and they have offered me no assistance. I know a class action suit has been filed for this very same issue. Chevy is aware of this issue. Chevy‘s choice to use a part they knew was faulty. Almost led to the death of my daughter.

The OTA had the interstate lanes bottle necked down. Traffic was trying to merge. The van had already slowed down and moved into the thru lane closest to the median. The van was pushed off the road by a semi into the contrete barrier. The semi clipped the bumper on the front passenger's side. It was also hit on the driver's side rear bumper. All of this caused the van to hit the wall on the front driver's corner. The airbags did not deploy! The driver was slammed into the steering wheel hitting his face against it. He suffered several facial fractures which required surgical repair. He now has plates holding the orbital socket, cheek bone, and jaw. The fracture in front of the ear was not plated. The highway patrol was called to the scene. The van will soon be released to the insurance company for claims inspection. We believe it to be totaled

2027 CHEVROLET BOLT – SUDDEN FORWARD LURCH / PROPULSION EVENT WITH MULTIPLE COMMUNICATION FAULT CODES While driving my new 2027 Chevrolet Bolt, I was stopped at a traffic light. When the light changed, I applied the accelerator gently to move forward. The vehicle suddenly produced a loud bang or clunk and lurched sharply forward. All of the yellow instrument panel lights flashed on for a few seconds. The acceleration was abrupt and substantially different from my accelerator input. Surrounding drivers were alarmed. The event was sufficiently forceful and unexpected that I considered it a safety issue involving propulsion control. I was not accelerating aggressively; this was a gentle acceleration, in traffic, making a left turn onto a freeway ramp. I subsequently brought the vehicle to the Chevrolet dealer for diagnosis. The dealer retrieved the following diagnostic trouble codes: U164B; U164E (5 times); U0485; U11FD; P3013; U1A25; U160A (3 times)l U197A (3 times); U0159; U1126 (2 times); U1150; B1A25; U1607; U1151 Several of the retrieved codes are U-series communication/data-network codes. The vehicle has now been at the dealership for three days; so far the dealer has not provided an explanation for the sudden lurch or identified the underlying cause of the diagnostic codes. Previously the car was at the dealership for 15 days. I am concerned that an intermittent electronic, communication-network, propulsion-control, power-supply, software, or related fault could cause another unexpected propulsion event. The vehicle has also experienced charging/range abnormalities, and code P3013 was among the codes retrieved by the dealer. I do not know whether those issues are related to the lurch event, and I am not asserting that they are. I am reporting them because they may be relevant to NHTSA’s evaluation of the vehicle’s electrical and control systems. I am requesting that this incident be recorded as a potential safety defect

The contact owns a 2015 Chevrolet Traverse. The contact stated that while driving at an undisclosed speed, there was an odor of rotten eggs inside the vehicle. The odor was discovered to be Hydrogen Sulfide that was entering the cabin of the vehicle from the overcharged batteries. No warning lights were illuminated. The dealer was contacted, and the vehicle was diagnosed with PCM failure. That contact stated that the failure caused rough shifting and a loss of control voltage. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 198,000.

The contact owns a 2020 Chevrolet Colorado. The contact stated that while reversing out of the driveway, the check engine warning light illuminated. The failure recurred while driving 65 MPH. The vehicle was taken to AutoZone, where DTCs P0024 and P0014 were retrieved, indicating exhaust camshaft position system performance issues for Bank 2 and Bank 1. The contact associated the failure with GM Special Coverage Number: N232430470 (Camshaft Position Actuator Valve Solenoid - Bank 2 (Left Side) Exhaust). The vehicle was then taken to the dealer, where the diagnostic result was confirmed. The dealer swapped the camshaft position sensor actuators between both banks and cleared the codes. The contact was advised that the cause of the failure would be determined if the diagnostic trouble codes returned. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the VIN was not included in the special coverage. The failure mileage was approximately 36,500.

2026 Chevy Silverado High Country with 13,193 miles 6.2 engine locked up on 7/29/26 and is currently at my dealer waiting on engine replacment. GM has not fixed the 6.2 liter engine failure issue's!