2019–2022 Proterra ZX5 & 2020–2021 Proterra Catalyst recall: brakes
⚠️ 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.
💥 The risk
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.
Is the fix free? Yes. Safety recall repairs are free at any authorized dealer under federal law, including parts and labor. (Vehicles more than 15 years old when the recall was announced can be excluded, but most manufacturers still fix them.)
- NHTSA campaign
- 22V855000
- Manufacturer recall #
- SC-22-158
- Manufacturer
- Proterra Operating Company, Inc.
- Vehicles affected
- 386
- Component
- PARKING BRAKE
- Owner phone
- 1-864-438-0000
- NHTSA hotline
- 1-888-327-4236
- Owner letters mailed
- Dec 21, 2022
- Recall started by
- MFR
- 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.