2019 Proterra Catalyst Recall: A body controller software update may have disabled the audible and…
NHTSA campaign 19V871000 · Electrical System · filed Dec 9, 2019 · verified Jul 30, 2026
The defect
Proterra, Inc. (Proterra) is recalling certain 2019 Catalyst buses. A body controller software update may have disabled the audible and visible warnings that notifies the operator that the brake interlock could be engaged.
The risk
If the vehicle does warn the driver that the brake interlock is engaged, the rear brakes may overheat, increasing the risk of a fire or crash.
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 notify owners, and dealers will update the body controller software, free of charge. The recall began January 16, 2020. Owners may contact Proterra 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.safercar.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…
- 2017–2019 Proterra Catalyst — One or more battery packs may allow liquid to leak into and…
- 2020–2021 Proterra Catalyst and 1 other model — Back pressure in the shared air exhaust for the pneumatic…
Other campaigns involving Proterra vehicles
Source: NHTSA recall database, campaign 19V871000. Data last verified Jul 30, 2026.