NHTSA Campaign 22V855000
PARKING BRAKE
Issued by Proterra Operating Company, Inc. · Reported Nov 18, 2022 · 386 vehicles affected
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.
Consequence
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.
Vehicles affected by this recall
| Make | Model | Year | Units |
|---|---|---|---|
| PROTERRA | CATALYST | 2020 | 386 |
| PROTERRA | CATALYST | 2021 | 386 |
| PROTERRA | ZX5 | 2019 | 386 |
| PROTERRA | ZX5 | 2020 | 386 |
| PROTERRA | ZX5 | 2021 | 386 |
| PROTERRA | ZX5 | 2022 | 386 |
Source: NHTSA Campaign 22V855000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.