Proterra Operating Company, Inc.: Parking Brake
Proterra Operating Company, Inc. reported this defect to federal regulators on Nov 18, 2022 and put the number of vehicles at risk at 386. The repair is free for as long as the recall stands.
The defect
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 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.
6 model years covered
Newest first| Vehicle | Complaints | Recalls | Fires | Crashes |
|---|---|---|---|---|
| 2022 Proterra ZX5 | 0 | 6 | 0 | 0 |
| 2021 Proterra Catalyst | 1 | 5 | 0 | 0 |
| 2021 Proterra ZX5 | 0 | 6 | 0 | 0 |
| 2020 Proterra Catalyst | 0 | 8 | 0 | 0 |
| 2020 Proterra ZX5 | 0 | 6 | 0 | 0 |
| 2019 Proterra ZX5 | 0 | 3 | 0 | 0 |
What this page is, and what to do next
A recall is not an opinion. It is a Part 573 report a manufacturer is required by federal law to file once it decides a defect poses an unreasonable risk to safety, and it commits them to repairing the vehicle at no cost to the owner. The three passages above are the manufacturer’s own wording as published by NHTSA.
This page describes the campaign. It cannot tell you whether one particular car has already been through the shop — that is tracked by VIN, and only the manufacturer knows it. Check yours at nhtsa.gov/recalls or with a franchised dealer, quoting campaign number 22V855000.
Full record for the 2022 Proterra ZX5 → · Recalls carrying a do-not-drive advisory → · Where this data comes from →