2020 Chevrolet Bolt problems

“My 2020 Chevrolet Bolt EV experienced a loss of propulsion that left the vehicle disabled in a parking lot. The vehicle initially displayed a motor-control system warning. It subsequently displayed "Drivetrain Power Lost" and refused to shift out of Park. After turning the vehicle off and waiting approximately five minutes, I restarted it. The READY indicator returned, and the vehicle shifted into Drive, but when I attempted to accelerate, it shuddered severely instead of moving normally. The service warning indicator remained illuminated. I stopped attempting to operate the vehicle because it was unsafe to drive. OnStar retrieved diagnostic trouble code P0A3F, associated with the drive motor position sensor circuit. Significantly, General Motors issued Technical Service Bulletin 19-NA-220 in May 2020, specifically covering loss of propulsion and DTC P0A3F in 2017–2020 Chevrolet Bolt EVs. Under the bulletin's "Cause" section, GM identifies a possible spread terminal in the X2 wiring harness connection on the transmission assembly. GM further states that the terminals may not have been properly aligned during installation at the vehicle assembly plant. The…”

“Recall 21V650 (GM N212345944) remedy not provided. The advanced diagnostic software (Software Final Remedy) was installed XXX. I bought the car used on XXX at 16,187 miles. While charging was still limited to 80% by the recall software, the software flagged the battery (DTC U362C-09) and propulsion power was reduced. Ron Tonkin Chevrolet ([XXX]) replaced the high-voltage battery pack on XXX at 21,409 miles (RO [XXX], GM TAC case XXX), which is within the 6,214-mile diagnostic period and before GM's XXX and XXX deadlines. GM's own owner letter filed with NHTSA (RMISC-21V650-9675) says such a replacement includes an extended 8-year/100,000-mile battery warranty from the replacement date. GM instead coded the repair as an ordinary warranty repair (labor op XXX), and the recall replacement-battery warranty was never added to my VIN. I am asking that GM provide the full recall remedy, including the Bolt Battery Limited Part Warranty.”

“Steering rack is starting to fail at under 47000 miles, car pulls to right during acceleration and pulls left when decelerating. Steering wheel does not return to the center and a slight left pull on the wheel has to be maintained at all times so the car doesn't merge right into traffic. It is available upon inspection request. I almost didn't realize it pulling to the right and almost merged into another car on the highway. It has not been confirmed yet by a third party. It has not been inspected yet. No warning lights or messages occured when it started happening.”

“When driving the car through a busy intersection there was a sudden, brief surge of acceleration, followed by deceleration and the vehicle cutting all motor power and becoming inoperable. The MIL lamp illuminated and the "Ready" light went out. I was unable to move the vehicle out of traffic until I got out and disconnected / reconnected the 12v battery to reset the car systems. The problem is difficult to reproduce, happening randomly, sometimes with multiple months between incidents. The incidents happen with no warning, and there are no other symptoms associated with the issue. The dealer mechanic indicated it is likely the issue indicated in Chevrolet TSB 19-NA-220, indicating the root cause is the resolver feedback connector on the electric drive unit damaged during vehicle assembly.”

“Accelerating to merge onto the highway the accelerator pedal got stuck under the all weather mat (provided and installed by the manufacturer). When I took my foot off the pedal the vehicle continued to accelerate. I had to break against the force of the motor trying to accelerate until I was going slow enough for the car to allow me to put it into park.”

“The contact owns a 2020 Chevrolet Bolt EV. The contact stated that while the vehicle was parked unattended, the vehicle exploded. The contact believed the failure was due to the battery. The front left tire message was displayed. The battery was previously replaced. The local dealer was contacted regarding the battery purchase. The vehicle was not diagnosed or repaired. The contact called another local dealer. La Quinta Chevy Cady Service, 79225 CA-111, La Quinta, CA 92253, to obtain the service records, but the vehicle was not diagnosed or repaired. The fire department was able to extinguish the fire. There were no reported injuries, police report filed, or airbag deployments. The manufacturer was contacted, who filed an incident report. The failure mileage was approximately 53,030.”