2017 Chevrolet Volt Brakes Problems

“After diagnosing an audible tick/click sound that occurs whether the car is powered on or off but stops momentarily when the brake pedal is applied, I was told the electric brake booster is bad and must be replaced. But GM has no parts available. I was told to drive the car and if the part fails completely, I will have no brakes at all. It has been over 3 weeks and there is no eta on parts.”

“I was approaching a sudden red light and applied my brakes hard but not too hard (I did not suddenly slam the brakes). The brakes applied as expected at first but the brakes let up some and my vehicle failed to decelerate for about half a second before the brakes applied again and decelerated to a stop. I was not able to depress the pedal further when it was clear that the brakes were not decelerating.”

“While approaching a red light at 35mph on a smooth road when I pressed my brake pedal nothing happened for nearly a second then the brakes worked as usual. Luckily no one was in front of me or I could of easily been in a crash. The VOLT has a brake-by-wire system with regenerative braking. I feel that either the regenerative braking failed and the computer took a long time to revert to the friction brakes or the brake module temporary failed and neither regen or friction brakes were available. …”

“Purchased a 2107 VOLT premier with 40k miles in july 2020. My wife was driving the car and it lost power on the freeway with a shift to park warning and check engine light. She was able to glide over to the shoulder and I came to rescue her. After repeated on off cycles I got the car to move a couple of miles with several jerking motions while driving then it died again and I lost power braking (went to manual only). This time I was unable to re-boot it and had onstar have it towed to a local chevy dealer who has a certified EV specialist”

“Vehicle brakes fail to fully engage intermittently. When slowing down on multiple separate occasions, the brakes work initially, then, the car feels like it's sliding on ice (dry summer roads) then the brakes engage again. The brake peddle generally feels normal at first, then goes soft and sinks. I've taken the vehicle to the dealership on multiple occasions who've stated there's nothing they can do. This is a serious safety concern to just send someone on their way with. I've also been working with general motors. …”