Table 1 shows one common service brakes related problems of the 2023 Chevrolet Malibu.
| Problem Category | Number of Problems |
|---|---|
| Service Brakes problems |
I am reporting a potential safety concern involving the brake vacuum pump in Chevrolet Malibu vehicles. I have seen multiple reports from owners describing vacuum pump failures, brakes becoming difficult to press, and brakes reportedly stopping working. Some owners have reported having to replace their vacuum pumps multiple times, while others have described serious safety incidents involving brake problems. I am concerned that these reports may indicate a recurring safety defect that could put drivers, passengers, and other road users at risk. A vacuum pump failure that affects brake assist could make it difficult to stop a vehicle safely and potentially cause a serious crash. I became aware of these reported safety concerns on October 13, 2026, after seeing multiple Chevrolet Malibu owners discuss these problems. This specific vacuum pump failure has not happened to my vehicle personally. I am submitting this report to bring these concerns to NHTSA’s attention and request an investigation into whether the affected Chevrolet Malibu model years have a safety defect that warrants a recall to prevent further crashes, injuries, or deaths.
October 7, 2026 this vehicle hydroplaned and I lost control of the vehicle. To the best of my knowledge, the steering wheel locked and when attempted to step on the brakes, no braking occurred. The vehicle slid into grass which then hit the guard railing on the interstate. After being inspected by collision shop techs, they have reason to believe the airbag sensor defected or was not installed to signal the airbags to deploy. The driver side door panel airbag did attempt to deploy but was unsuccessful.
The brake pedal on my vehicle intermittently becomes stuck in the fully raised position and will not depress when I attempt to apply the brakes. When this occurs, I am unable to slow down or stop the vehicle, creating an immediate and serious safety hazard. The problem happens without warning and has occurred multiple times while driving at various speeds. When the defect occurs, the pedal feels locked or jammed, and I have to use extreme force or pump the pedal repeatedly before it finally releases. This delay in brake response puts me, my passengers, and other drivers at risk of a crash. The issue is unpredictable and does not appear to be related to weather, temperature, or driving conditions. I have not made any modifications to the braking system. The defect has occurred both during normal city driving and while approaching intersections. Because the failure prevents the brakes from engaging at all, I believe this is a critical safety issue that requires investigation.
Brake system failure lost brakes twice, went and got a diagnosis reading and it said brake system module failure. That it lost communication with the module.