NHTSA Recall 22V855000
Filed by Phoenix Motorcars. Component: Parking Brake. Reported 2022-11-18. An estimated 386 vehicles are affected. Recall repairs are free at any authorized dealer.
Defect
Proterra Operating Company, Inc. (Proterra) is recalling certain 2020-2021 Catalyst and 2019-2022 ZX5 transit buses. Back pressure in the shared air exhaust for the pneumatic ride height system and parking brake control valve may engage the parking brake while the vehicle is in motion.
Risk
Unintentional engagement of the parking brake increases the risk of a crash.
What the manufacturer will do
Proterra will install a redesigned air circuit, free of charge. Owner notification letters were mailed on December 21, 2022. Owners may contact Proterra's customer service at 1-864-438-0000.
Manufacturer campaign number: SC-22-158
Notes
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.