CarRecallWatch- Component
- PARKING BRAKE
- Problem
- 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.
- 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.
What this recall means for you
Back pressure in the shared air exhaust for the ride height system and parking brake control valve can cause the parking brake to engage while the bus is moving. This happens without the driver applying it, which increases the risk of a crash.
If you own an affected Proterra Catalyst or ZX5 transit bus, Proterra will install a redesigned air circuit at no cost to you. Owner notification letters were mailed on December 21, 2022. You can also contact Proterra customer service at 1-864-438-0000, and check your vehicle identification number (VIN) for open recalls.
Check whether this recall is open on your vehicle
Official recall notice
Affected vehicles
| Proterra Catalyst | 20202021 |
|---|---|
| Proterra ZX5 | 2019202020212022 |