NHTSA recall 21V268000
Electrical system › Software
Proterra Catalyst
The defect
Proterra, Inc. (Proterra) is recalling certain 2019-2020 Catalyst 40 foot buses. A software defect in the body controller that operates the door motor may allow the rear door to open unexpectedly.
The risk
The rear door may open without the driver's awareness, increasing the risk of injury.
The remedy
Proterra will notify owners, and dealers will update the software, free of charge. Owner notification letters were mailed on June 11, 2021. Owners may contact Proterra customer service at 1-864-438-0000.