CHEVROLET Complaints

The vehicle is experiencing a severe and dangerous transmission defect that manifests as intense shuddering and vibrations followed by instances of random, unintended acceleration. Specifically, while operating the vehicle at various speeds, the transmission fails to engage properly, causing a violent vibration/shudder. This is frequently followed by the vehicle surging or accelerating unexpectedly without increased pressure on the gas pedal. This condition creates a significant safety hazard as it compromises the driver's ability to maintain a constant speed and control the vehicle in traffic or during low-speed maneuvers. The random acceleration is unpredictable and poses an immediate risk of rear-end collisions or loss of vehicle control. General Motors (GM) has issued multiple Technical Service Bulletins (TSBs) regarding this specific 8-speed transmission defect (shudder/vibration), yet they have failed to issue a safety recall. My vehicle began exhibiting these life-safety symptoms approximately two weeks after the 100,000-mile powertrain warranty expired in August 2025. A licensed transmission specialist has diagnosed the issue as a torque converter failure and transmission fluid contamination, consistent with the known defects identified in GM's own TSBs. Chevrolet has refused to remedy this safety defect at their expense, citing warranty expiration, despite their documented prior knowledge of the systemic nature of this failure. I am reporting this to NHTSA because the random acceleration component of this defect is a clear and present danger to myself and other motorists on the road.

I am writing to report a safety concern with my 2021 Chevrolet Equinox. The rear bumper has begun to separate from the body of the vehicle and becomes loose during normal use. This issue appears to be related to how the bumper is attached (clips, fasteners, or design), not due to any collision or damage. A loose rear bumper creates a potential safety hazard, as it could detach while driving or pose a risk to other drivers. I recommend that Chevrolet investigate this issue for a possible defect and consider a recall if this is found to be a common problem among similar vehicles.

On numerous occasions, the multiple automatic collision braking systems have engaged in what I would describe as phantom breaking. For me personally, the automatic breaking has on multiple occasions caused a serious crash, both while backing out of parking, at intersections and most recently on Interstate 880. The AEB system engaged and slammed the breaks while changing a lane in traffic and the car came to a complete standstill. Two cars almost crashed into me. I feel less safe with AEB engaged than I feel without it and I this incident was the final straw. I will be disabling AEB. The system is severely flawed and will be the cause for serious accidents.

While driving truck loses power. We stop put in park & then have to restart the truck to start driving. It has happened 3 times & we know this is a problem for other trucks.

No warnings, just took it in and failed test. Waiting on engine replacement over two weeks with no idea when itll be taken care of. Only around 8k miles.

My engine shut off while driving down a highway. I had to coast into an uneven, steep ditch. If someone would have been behind me, it could have caused an accident. I have the 6.2 engine and followed the recall instructions. Dealer said motor was fine and around 7,000 miles later it failed. The oil weight change is not fixing these issues.

The automated emergency breaking system has been triggered unintentionally twice traveling at speeds of 50 miles per hour. There was no vehicle or object that entered our path. We were traveling behind cars at least three car lengths behind that remained at the same speed. Had there been vehicles behind us, we would have been rear ended at high speeds as the truck came to almost a complete stop on its own immediately.

The engine randomly shut off while driving down the interstate and wouldn’t start back up. The car had the recall “remedy” done to it. Inspection and thicker oil. The only warning I got was to restart the engine after it shut off. My safety was compromised by breaking down on a main interstate coming through Memphis with no emergency lane to pull over in.

I own a 2020 Tahoe, 160,000 miles. While driving, the vehicle experienced a sudden loss of brake assist due to a failure of the vacuum brake pump. The brake pedal became extremely hard, and the vehicle would not slow or stop as expected, requiring me to put vehicle in neutral and frantically find a way to the shoulder to force a stop (pulling the emergency brake). This created a dangerous condition and significantly increased stopping distance, posing a serious safety risk to myself, and others on the road. There was little to no warning prior to the failure. This issue appears to be consistent with known complaints involving vacuum pump failure and loss of brake assist in similar vehicles. A failure of the braking assist system is NOT a normal wear condition and presents a critical safety hazard. I am reporting this incident due to the safety risk associated with sudden brake assist failure and the potential for accidents or injury. Vehicle issue has been confirmed by an independent service center. There was a warning light that appeared at the same time the brake stopped working leaving me no time to plan or know ahead not to drive.

The vehicle only has 145,xxx miles and I experience a "shudder" which could be caused by torque converter issues, often felt at highway speeds (approx. 40-60 mph).