2017–2019 Proterra Catalyst Recall: One or more battery packs may allow liquid to leak into and accumulate in…
NHTSA campaign 22V887000 · Electrical System · filed Nov 30, 2022 · verified Jul 30, 2026
The defect
Proterra Operation Company, Inc. (Proterra) is recalling certain 2017-2019 Catalyst transit buses. One or more battery packs may allow liquid to leak into and accumulate in the battery pack enclosure.
The risk
The accumulation of liquid inside the battery pack enclosure increases the risk of a fire.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
Proterra will update software, inspect, and replace the battery pack, free of charge. Owner letters were mailed November 6, 2023. 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.
Affected vehicles
Related recalls
More Proterra Catalyst recalls
- 2019–2021 Proterra Catalyst and 1 other model — Vehicle controller software may allow the electrical…
- 2019–2022 Proterra Catalyst and 1 other model — A transistor inside the inverter may overheat and fail…
- 2020–2022 Proterra Catalyst and 1 other model — Windshield wiper motors may operate intermittently or may…
- 2020–2021 Proterra Catalyst and 1 other model — Back pressure in the shared air exhaust for the pneumatic…
- 2015–2022 Proterra Catalyst and 1 other model — Plexus adhesive between the torque limiter plate and the…
Other campaigns involving Proterra vehicles
Source: NHTSA recall database, campaign 22V887000. Data last verified Jul 30, 2026.