NHTSA Recall 22V855000: Parking brake
Proterra Operating Company, Inc. reported this safety recall to NHTSA on , covering an estimated 386 vehicles. It affects 2 models including the Proterra Catalyst.
| NHTSA campaign | 22V855000 |
|---|---|
| Manufacturer campaign | SC-22-158 |
| Component | PARKING BRAKE |
| Report received | November 18, 2022 |
| Owner notification | December 21, 2022 |
| Initiated by | Manufacturer |
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.
Safety risk
Unintentional engagement of the parking brake increases the risk of a crash.
Remedy
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.
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.
Vehicles covered by recall 22V855000
Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.