2015–2018 Proterra Catalyst Recall: Mesh cap covering the airline for the tow fitting can be clogged with road…
NHTSA campaign 19V283000 · Service Brakes · filed Apr 9, 2019 · verified Jul 30, 2026
The defect
Proterra, Inc. (Proterra) is recalling certain 2015-2018 Catalyst 40 buses equipped with an optional tow fitting and airline that allows a tow truck to operate the rear brakes on the vehicle. The mesh cap covering the airline for the tow fitting can be clogged with road debris in inclement weather, possibly resulting in a build up of air pressure in the rear brake system.
The risk
A build up of air pressure can cause the brakes to drag and possibly overheat, increasing the risk of 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 notify owners, and dealers will install an additional shield to the tow fitting that protects the mesh cap, free of charge. The recall began June 4, 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
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- 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 19V283000. Data last verified Jul 30, 2026.