Table 1 shows one common service brakes related problems of the 2020 Chevrolet Bolt Ev.
| Problem Category | Number of Problems |
|---|---|
| Service Brakes problems |
Right brake caliper sticking intermittently, causing massive vibration in steering wheel and a caliper too hot to touch. In doing research on the chevy bolt forum, there were many people talking about this issue. In fact, gm issued a TSB about this issue, but when I entered my VIN in the gm site, it said that my VIN as not impacted; however, it was! I suggest that the ntsb do a further investigation to include all vins affected with this issue. I had to spend several hundred dollars for a repair shop to replace the right brake caliper. Since the repairs were completed, I've had no issues whatsoever. Thank you.
The contact owns a 2020 Chevrolet bolt. The contact stated that while, driving approximately 50-60 mph and 30 feet from another vehicle the brake pedal was applied but depressed to the floorboard. The vehicle failed to stop and crashed into the rear of a Toyota prius. There were no warning indicator lights illuminated. The contact was able to drive away from the scene. There were no reported injuries, fire or police report filed. The air bags did not deploy. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not notified. The approximate failure mileage was 10,000.
I have had people following me, and almost hit me when stopped at a stop sign, or waiting to turn left, because the brake lights go off while the car is still being held to some degree by electric motor braking. When driving the car in l mode, one pedal driving, the brake lights come on when decelerating, but when stopped they turn off. The issue is, there is some electrical braking applied when stopped at a stop sign or light, even with no foot on the brake pedal. The car will hold on a slight grade when in l, with no foot on the brake pedal. As far as I understand the law, if there is service braking being applied, the brake lights must be on. I also believe that the electric motor holding back is considered to be service brakes on an ev. I've heard gm corrected this issue on the 2022 models, and I think it should be corrected in the earlier models. Another issue is tall vehicles following close behind me don't see the turn signals because they are in the bumper, mounted very low. I've had people blow the horn at me several times for turning, when they did not see my turn signals. They are working properly, just too low for some vehicles to see when they are close behind. The turn signals are separate and are much lower than the brake lights.
Tl- the contact owns a 2020 Chevrolet volt. The contact stated the vehicle was in "l" mode before the vehicle lunged foward into the wall. "l" mode is progressive mode to save battery usage. The failure occurred Jan 29, 2020. Approximate failure mileage 500. Bh VIN tool confirms 0 unrepaired recalls heritage Chevrolet owing mills (11234 reisterstown rd, owings mills, MD 21117) heritage Chevrolet Buick owings mills VIN: 1g1fy6s04l4107643 VIN tool confirms 0 unrepaired recalls heritage Chevrolet owing mills (11234 reisterstown rd, owings mills, MD 21117) heritage Chevrolet Buick owings mills VIN: 1g1fy6s04l4107643.