2019–2022 Proterra Catalyst, Proterra ZX5: Parking Brake recall
NHTSA campaign 22V855000 · 386 units potentially affected · filed Nov 18, 2022
What's wrong
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.
Why it matters
Unintentional engagement of the parking brake increases the risk of a crash.
The fix
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.
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.
Recall details
- NHTSA campaign
- 22V855000
- Manufacturer no.
- SC-22-158
- Manufacturer
- Proterra Operating Company, Inc.
- Component
- PARKING BRAKE
- Units affected
- 386
- Report received
- Nov 18, 2022
- Owner letters
- Dec 21, 2022
- Type
- Vehicle
Check whether your vehicle is included with the official NHTSA VIN lookup or your dealer. Repairs for safety recalls are free.
Vehicles covered
- Proterra Catalyst 2020, 2021
- Proterra ZX5 2019, 2020, 2021, 2022