CHEVROLET Complaints

"While attempting to merge onto a high-speed freeway on-ramp, the vehicle suffered a sudden and catastrophic loss of engine power, rendering it unable to accelerate and creating an immediate life-threatening safety hazard. The vehicle was restarte and driven home, where an onboard diagnostic check revealed an emissions system failure. The dealership later confirmed that BOTH close-coupled catalytic converters on the 3.6L V6 were damaged. The check engine light was a solid light. Not flashing.

The car suddenly lost power and produced error messages on the screen. I had to quickly change lanes to get out of traffic on the highway. My dealer diagnosed the issue as a BECM malfunction and quoted a repair cost of approximately $3500. However, due to my car originally being registered in California, this failure is not covered under GM Special Coverage Bulletin N232432680 (issued March 2024), which provides an extended warranty for BECM issues on affected 2016-2018 Volts up to 15 years or 150,000 miles. My VIN does not qualify for this coverage despite the vehicle being within the model years affected by known BECM soldering/connection failures. This appears to be part of a broader pattern of BECM defects in 2016-2019 Volts that can lead to sudden loss of propulsion, as previously investigated by NHTSA. GM should extend coverage or issue a recall for all affected vehicles, as this defect compromises vehicle safety and leaves owners with expensive out-of-pocket repairs for a known issue.

While driving, the brakes became hard and the vehicle was difficult to stop. The brake pedal required excessive force, brake assist was reduced, and the stopping distance increased, creating a serious safety hazard. The check engine light had been illuminated for approximately two years before the brake failure occurred. In January 2024, I reported brake-related concerns to a Chevrolet dealership while the vehicle was under warranty, but the root cause was not diagnosed. In November 2025, after the brake pedal became hard, an independent repair facility inspected the vehicle and determined the brake problem was caused by a failing engine vacuum pump. They advised that the vehicle be repaired by a Chevrolet dealership. By January 2026, the brake condition had worsened to the point that the vehicle was no longer safe to drive and had to be towed. A Chevrolet dealership later confirmed that the engine vacuum pump had seized and damaged the camshaft, requiring replacement of both components. The vehicle remains inoperable. The failed vacuum pump caused loss of brake assist, resulting in a hard brake pedal, reduced braking ability, and an increased risk of a crash. I believe this represents a serious safety defect because failure of the vacuum pump significantly impairs the driver’s ability to stop the vehicle safely. I understand GM has issued service information regarding vacuum pump failures on this engine, and I am submitting this complaint because I believe other drivers may experience the same dangerous brake failure.

My 2018 Chevy Volt started making a creaking and clanking noise when driven at low speeds. Dealer diagnosed the problem as being the rear shocks and bushing. Replacing these did not fix the problem. Not sure if this is a safety issue or not.

ON JUNE 2ND 2026, the air conditioning in my 2025 Chevrolet Tahoe failed without warning. The system began blowing warm air instead of cold air, making the vehicle uncomfortable to drive. At the same time, I noticed that both front ventilated (cooled) seats had also stopped working. Although the seat cooling indicator lights illuminated when activated, the seats did not produce any cooling. I called to schedule an appt and took the vehicle to the dealership for diagnosis and repair on june 4, 2026. The dealership determined that the A/C condenser had failed and replaced it. I was advised that the repair had been completed, and I picked up the vehicle believing the issue had been resolved. Shortly after the repair, it became apparent that the problems had not been fully corrected. While the air conditioning initially appeared to function, the ventilated seats continued to provide no cooling despite appearing to operate normally. This marked the beginning of an ongoing series of HVAC-related failures that ultimately required multiple return visits to the dealership.

The welds that hold the catalytic converter and exhaust pipe together have pinhole leaks. The hose that connects to the exhaust system is also failing. This has been confirmed by the Chevy dealership we took it too. No warning lights were triggered. We heard a rattling noise after having a prior hose replaced. One week later we were back at the same dealership. At this appointment they discovered the pinhole leaks and confirmed there are pinhole leaks while revving the engine to 1,000 RPMs. We requested GM pay to fix the issue and they have refused. Our safety is at risk because no sensors were triggered and we could smell exhaust fumes in the vehicle while using the air conditioning. This is not the first issue we had with this vehicle. Prior to this the whole car died while my wife was driving it with our 2 kids in the car with her. She had no steering or braking.

The interior trim has many problems affecting safety. 1. Plastic chrome trim reflects blinding sun in my eyes. 2. Dash finish reflects severely onto the windshield, cannot see clearly. These are extreme safety issues. I believe GM should provide fix kits in a recall before someone is killed. And required design standards for this. Note: the camera lessens the glare in the attached pictures

The contact owns a 2025 Chevrolet Malibu. The contact received notification for NHTSA Campaign Number: 26V212000 (Back Over Prevention); however, the part to do the recall repair was unavailable. The contact stated that while reversing, the rearview camera displayed a blank image. The dealer was made aware of the failure and informed the contact that the parts were unavailable. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure and confirmed that the parts were unavailable, but no assistance was provided. The failure mileage was approximately 9,700.

The contact owns a 2014 Chevrolet Spark. The contact stated that while driving at an undisclosed speed, the hood independently unlatched and crashed against the front windshield, causing damage to the windshield and bending the hood out of shape. Additionally, the hood became stuck in a locked position following the impact. The vehicle was taken to a glass repair shop, where the windshield was replaced; however, the vehicle was not diagnosed or repaired by an independent mechanic or a dealer for the hood failure. The contact related the failure to NHTSA Campaign Number: 22V640000 (Latches/Locks/Linkages). The manufacturer was not made aware of the failure. The failure mileage was approximately 65,000.

We had car checked due to strange and erratic shifting in less than a year of owning. Then took in for recall, they stated it was fine and performed the remedy with higher grade oil. Still had issues and took to another dealership to look at and they stated it was fine as well. About 2 months later while I was driving it was hesitating and would kind of buck and when I was about to turn on to a busy road it just stopped. I couldn’t do anything at all, the entire car was locked up. The tow truck driver couldn’t even get it into neutral to tow. Dealership said it’s the engine and it needs to be completely replaced.