Proterra Operation Company, Inc. (Proterra) is recalling certain High Voltage Junction Box (HVJB) DC Links, with part number 051071. A high voltage battery cable may not be properly connected, which can cause a loss of electrical power or a ground short circuit.
An unexpected engine shutdown can increase the risk of a crash. Additionally, a disabled school bus may require an evacuation procedure in an uncontrolled traffic situation, increasing the risk of injury to passengers. A ground short circuit can increase the risk of a fire.
Proterra will inspect and repair, or replace the battery cable, as necessary, free of charge. Owner notification letters were mailed September 12, 2022. Owners may contact Proterra's customer service at 1-864-438-0000. Proterra's number for this recall is SC-22-025.
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.