CHEVROLET Complaints

While driving my 2015 Chevrolet Malibu on a four-lane highway with a posted speed limit of 70 mph, the vehicle displayed an “Engine Power Is Reduced” message and limited the vehicle to less than approximately 25 mph. This created a serious safety concern because the vehicle could no longer maintain highway traffic speed, resulting in a significant speed differential of nearly 45 mph below the posted limit and surrounding traffic flow, creating a high risk of being struck by other vehicles. The vehicle also experienced an alternator problem while being driven on the highway. It repeatedly acted like it was not getting enough power to maintain the speed of surrounding traffic, and we had to pull over on the side of the road. The vehicle has also had an engine-related issue discovered during repairs. When the valve cover gaskets were replaced, the vacuum pump was found to be severely damaged, and metal shavings were found in the engine oil. The reduced-engine-power problem has occurred in connection with the vehicle's electrical and engine problems. The vehicle and affected components may be available for inspection upon request. The vehicle has been inspected during repairs, and the damaged vacuum pump and metal shavings in the oil were observed during that inspection. These problems create a safety risk because the vehicle can suddenly lose engine power and become unable to maintain highway speed. The loss of normal power while traveling on a four-lane highway could make it difficult to accelerate, merge, or get out of the way of other vehicles.

While driving on the freeway, I experienced a sudden issue with the vehicle’s braking system. The brake pedal became extremely stiff and difficult to press, and the brake assist stopped functioning. I was still able to apply the brakes, but it required significantly more force than normal to slow and stop the vehicle. Prior to this incident, I had also noticed an issue where the engine did not shut off normally after removing the key. The engine continued running briefly before shutting off with a noticeable rumble/shudder. I do not know whether the two issues are related, but I am including this information because it occurred before the brake-assist failure and may be relevant to diagnosing the vehicle.

My rear view camera is fuzzy and today it went out completely and the screen was black. Sometimes it shows what’s behind the car when I’m backing and then suddenly the screen goes black and I’m unable to see anything. It just started today 6/15/26z . I believe this is a safety hazard and could cause an accident while backing up putting myself and others at risk . There was no warning before this happened, I just noticed the screen was fuzzy on one side, then the fuzziness would go to the other side of the screen . I wasn’t sure what was happening until it completely went black .

My 2023 Malibu VIN [XXX] has an active backup camera failure due to recall [XXX]. The remedy says unavailable, but the car is currently unsafe. I need to open a corporate case for a dealer loaner vehicle INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The motor seized. My life was at risk. I was on the highway. The vehicle was reported to the Chevy dealership and diagnose that the motor is locked.

While driving my 2017 Chevrolet Malibu LT equipped with the 1.5L turbocharged engine, the brake vacuum pump failed due to the pump’s mechanical drive/tang shearing. The failure resulted in loss of vacuum assistance to the power brakes, creating a significantly harder brake pedal and a serious safety concern because braking assistance can be reduced and stopping may require substantially more effort. After removing the failed pump, I found that part of the pump’s drive mechanism had sheared off and had to be retrieved from the camshaft area. I am retaining the failed pump and broken component. I am requesting that this failure be investigated as a potential safety defect because a failure of a component responsible for brake-assist vacuum can affect the vehicle’s ability to stop safely.

Main bearing failure at highway speed. Engine replaced by GM under warranty. Vehicle had the recall service done prior to the failure, the recall test and different oil was inadequate to predict or prevent this failure. Vehicle was serviced by the dealer for all oil changes on time.

I was just driving down the highway today 15, August 2026 and my sunroof just shattered. I have a moon roof in the back half that sounded like a gunshot. I heard a pop and down falls shards of glass on me while I was driving.

Walked out to the car and the side air bags deployed and now it won't start. No power No accident. Drove it to the driveway and parked it. Now it won't start.

Dfn failure Cylinder 6 140,000 MI oil changes done at 20% using nothing but mobile one full synthetic 0w 20