Main Issue: Ongoing issue with stuck caliper causing the pads and wheels to overheat increasing the tire pressure to dangerous levels. The regenerative braking system is actually very effective in slowing the car when driven in L mode. If driven smartly, driver rarely have to use a lot of force using the physical brakes and rotors. Three times now, I have had issues where the front calipers were seized and the brakes were stuck causing the wheels to have visible smoke, odors and extreme temps. Perhaps they are not being used as much as normal brakes but service was done at the dealership on both cases, only to have the issue return within a year on a low mileage car. Looking at online forums, this appears to be a common issue with the Volt. Often the High Pressure Accumulator (HPA) is not properly reset during a brake job. [XXX] I have had other non EV cars with regular brakes that worked fine for > 50k miles before service, so there is clearly an issue here. Ironically, as these brakes caliper/pistons/rotors are less used due to regen, the chance of them getting stuck seems to be an issue when they are actually engaged leading to dangerous conditions. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- North Branford, CT, USA

abs system failure due to defect The cause of the condition may be a fracturing of the front half shaft anti-click washer (1) and possible collateral damage to the ABS wheel speed sensor (WSS). this defective $5 part causes thousands of dollars of repair this should be a recall as there are numerous reports of these parts failing and causing the vehicles braking system to be impaired this failure has happened to this vehicle 2 times with in the last 60 days

- Staten Island, NY, USA

A Shift to Park message displayed while the vehicle is in park. The car will not turn off and continues to run. The issue is well documented through GM/Chevrolet, as they have a service bulletin (19-NA-206) for it. That document specifically states that the Voltec Warranty covers this issue, but Chevrolet is refusing to service my car based on its VIN number, despite identifying it as the same issue. And for the last question, no lights initially came on but then the check engine light came back on. When the car was finally turned off at the dealership, it turned back on with no issue lights or messages.

- Sacramento, CA, USA

After I put the car in park, the car dashboard doesnt reflect this change, essentially assumes the car is not in park and I am unable to lock the car and the lights will stay on for a while. After jiggling the shift handle just the right way I could get it to recognize the car was indeed in park.

- San Mateo , CA, USA

After fully charged my car, I pulled out of the parking garage and into an available parking stall at work on Friday January 24th 2020 at approximately 1:50pm. I let my car cruise into the stall while my foot is covering the brakes. Halfway into the parking stall, the car accelerated on its own. I applied the brakes but did not help. It stopped only when it jumped the front concrete stall with 2 front wheels and hit the trees then rolled back. I then immediately shift the gear to park. The day was sunny and road condition was dry. I was fortunate that it hit the trees and not other cars if I were to take this out on the road. The attached pictures shows tire marks as I am trying to brake and the tire wears.

- San Jose, CA, USA

Gen 2 Volt has a paddle on the steering column that brakes the vehicle and adds some charge to the main battery. (part of thr regen system) since it brakes the vehicle I believe that the brake lights should illuminate, they don't. in the owners it states that the "brake lights may come on"... may"?"..... I had the vehicle in the dealership for 2 days. The BCM was changed and that was suppose to fix the issue, it did not. I and other Volt form members feel this an unsafe condition. 17/2018

- Wantagh, NY, USA

I ran into a vehicle in front of me during normal traffic on my way home from work, two months to the day of picking up my 2018 Volt. The vehicle ahead of me may have stopped quickly, but it was not a stop the Volt shouldn't have been able to handle. I was on a street in my neighborhood I drive every day in traffic. I had mentioned to friends and family that the Volt's brakes just did not feel on par with the rest of the car and would be the only aspect of this ev experience I found lacking. I have the dated text messages to prove this. Now I have a Volt at the body shop for the 5th week (lacking an ac line for reassembly), an over 55% increase in my insurance premiums (per the renewal notice I just received) and what really hasn't been a good experience. While I'm waiting for the return of my Volt I have received the important safety recall indicating the braking performance may be reduced. If the car had been able to stop two feet shorter I'd have an undamaged three month old Volt and my insurance standings untarnished. That two feet ended up costing over $17,500 to the car. Turns out Volts are also expensive to repair. I'm a 55 year old male, no wild kid. Still stuns me that in 2018 GM can't get brakes right...the most important of safety systems.

- Rochester, NY, USA

Collision occurred on E denny way in seattle, approx 3:20 pm on a downhill slope in stop-and-go traffic after about 20 minutes of constant brake use to hold back the car. About 2/3 of the way downhill the brakes failed, no resistance whatsoever and the car rolled into the vehicle in front, a distance of about 15 feet. This was a one-off incident and did not recur so far. GM and 3rd party inspectors found no error codes, but the brakes indeed failed, which makes me suspect a design problem in the brake-by-wire system that controls the pedal pressure and modulated regenerative braking. It was like sliding on ice, no traction whatsoever.

- Seattle, WA, USA