Table 1 shows two common back over prevention related problems of the 2019 Chevrolet Bolt Ev.
| Problem Category | Number of Problems |
|---|---|
| Warnings problems | |
| Rearview System Braking problems |
The center touchscreen will intermittently freeze when started and not recover when driving. When this occurs the hvac and radio hard buttons also stop responding which prevents control of the defrost, creating a visibility hazard that could result in a crash. Sometimes the freeze will result in the backup camera remaining on while driving forward. When in reverse the freeze results in the backup camera guidelines, parking collision warning and rear cross traffic warning being unavailable. Failure of these systems intended to prevent collisions is a safety hazard because unavailability of these systems could result in a collision. The freezing did not occur frequently when the vehicle was new, but over time this has become a frequent occurrence. The vehicle is available for inspection upon request. The problem has been reproduced by a dealer and been subject to repair twice, but the issue has continued to occur after each repair attempt. The vehicle was subject to bulletin 20-na-119 which was intended to correct radio screen black/freezes after boot up, but this does not appear to have resolved the issue.
Rainwater leaks through the rear windshield wiper grommet and runs down into the trunk shorting out the amplifier that is located at the bottom underneath the tire change kit. Collision alert sounds and turn signal sounds do not function because the amplifier is shorted out. There is no visible sign of water leak unless you disassemble and entirely remove 1) the top trunk cargo liner, 2) lower trunk charger compartment liner, and 3) large styrofoam tray with tire change kit. Water pools around the amplifier corroding terminals and shorting out the amplifier creating an electrical shock hazard. There are no drainage holes in the trunk well so rainwater has no way of draining.