2015–2018 Proterra Catalyst Recall: Affected vehicles are equipped with a four point height control system…
NHTSA campaign 19V062000 · Tires · filed Jan 30, 2019 · verified Jul 30, 2026
The defect
Proterra Inc., (Proterra) is recalling certain 2015-2018 Catalyst 40 and 35 transit buses. The affected vehicles are equipped with a four point height control system that may cause a load imbalance, overloading the front tires.
The risk
An overloaded front tire may fail unexpectedly, increasing the risk of 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 convert the current four point ride height system into a three point system to prevent the front tires from being overloaded, free of charge. The recall began March 26, 2019. 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 19V062000. Data last verified Jul 30, 2026.