Proterra Operating Company (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.
Proterra Operating Company – Parking Brake Can Unintentionally Engage
| Report Received Date | 11/18/2022 |
| NHTSA ID | 22V855000 |
| Consequence Summary | Unintentional engagement of the parking brake increases the risk of a crash. |
| Corrective Action | 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. |
| Recall Code | NR (Not Reported) |
| Potentially Affected | 446 |
| Fire Risk When Parked | No |
| Do Not Drive | No |
| Recall Link | Go to Recall (https://www.nhtsa.gov/recalls?nhtsaId=22V855000) |
More Proterra Operating Company Recalls