2018 Proterra Catalyst recalls
9 NHTSA recall campaigns naming the 2018 Proterra Catalyst. Last verified Jul 30, 2026. Recalls may apply only to certain VIN ranges — always confirm with a VIN check.
Units are totals reported across campaigns mentioning this model — NHTSA does not always break unit counts down by model.
Affected components
Nearby model years
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 →Campaigns
- Nov 30, 2022Fire risk2017–2019 Proterra Catalyst — Electrical System
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.
22V887000 · 300 units · Proterra Operating Company, Inc.
- Feb 28, 2022Crash risk2015–2022 Proterra Catalyst, 2015–2022 Proterra ZX5 — Steering
Proterra, Inc. (Proterra) is recalling certain 2017-2019 35 foot Catalyst E2, 2017-2019 40 foot E2, 2020-2021 35 foot RR, 2019-2020 40 foot RR, 2019-2022 40 foot ZX5, and 2020-2022 35 foot ZX5 buses. The plexus adhesive between the torque limiter plate and the bus body may be insufficient, causing the bolts that secure the steering gearbox to loosen.
22V114000 · 724 units · Proterra, Inc.
- Oct 28, 2020Crash risk2018–2020 Proterra Catalyst — Steering
Proterra Inc. (Proterra) is recalling certain 2018-2020 35 foot and 40 foot Catalyst buses. Lack of plexus adhesive between the torque plate and the vehicle chassis may cause the bolts securing the steering gear box to loosen.
20V664000 · 5 units · Proterra Inc.
- Jun 14, 2019Crash risk2018–2019 Proterra Catalyst — Structure
Proterra, Inc. (Proterra) is recalling certain 2018-2019 Catalyst buses equipped with a certain batch of glass roof hatches. Temperature and vibration stresses may cause the tempered glass roof hatch to shatter.
19V460000 · 21 units · Proterra Inc.
- May 30, 2019Crash risk2017–2018 Proterra Catalyst — Service Brakes, Air
Proterra, Inc. (Proterra) is recalling certain 2017-2018 Catalyst buses. The vehicles are equipped with swivel valves that may insufficiently protect the air brake system from an air leak between the service reservoir and the source of air pressure. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 121, "Air Brake Systems."
19V402000 · 147 units · Proterra Inc.
- Apr 9, 2019Fire risk2015–2018 Proterra Catalyst — Service Brakes
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.
19V283000 · 39 units · Proterra Inc.
- Jan 30, 2019Crash risk2015–2018 Proterra Catalyst — Tires
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.
19V062000 · 310 units · Proterra Inc.
- Jan 29, 2019Crash risk2016–2018 Proterra Catalyst — Service Brakes, Air
Proterra Inc., (Proterra) is recalling certain 2015-2018 Catalyst 40 transit buses. The affected vehicles lack a Graham White air brake supply reservoir, possibly resulting in long term moisture build up in the air brake system. As a result, these vehicles fail to comply with Federal Motor Vehicle Safety Standard (FMVSS) number 121, "Air Brake Systems."
19V061000 · 55 units · Proterra Inc.
- Jan 16, 2019Crash risk2015–2018 Proterra Catalyst — Equipment
Proterra, Inc is recalling certain 2015-2018 Catalyst 40, and Catalyst 35 buses. The certification label may list an incorrect gross front axle weight rating and/or incorrect tire pressures. As such, these vehicles fail to comply with the requirements of 49 CFR Part 567, "Certification."
19V034000 · 184 units · Proterra Inc.