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RECALLS — MAKE · MODEL · YEAR

2019 Proterra Catalyst recalls

12 safety recall campaigns have been filed for the 2019 Proterra Catalyst with Transport Canada and the U.S. NHTSA. Here is what both agencies say.

Canadian recalls
03
U.S. recalls
09
Total campaigns
12

Transport Canada recalls

03
  • Electrical#2024508

    90 units affected

    Issue: Under certain conditions, the connectors and wiring for the radiator fan could overheat and melt. Note: This problem could cause warnings to display on the instrument cluster. Safety Risk: Wiring that overheats and melts can create the risk of a fire. Corrective Actions: Phoenix Motor Inc. will notify owners by email and provide you with instructions for how to update the vehicle controller software.

  • Powertrain#2023559

    11 units affected

    Issue: On certain transit buses, the traction inverter could overheat and fail. If this happens, there could be a sudden loss of power while driving, including a loss of power steering assist. Safety Risk: A sudden loss of power could increase the risk of a crash. A loss of power steering assist can cause a sudden increase in steering effort and increase the risk of a crash. Corrective Actions: Proterra will notify owners by mail. The corrective actions for this recall are under development.

  • Steering#2022091

    90 units affected

    Issue: On certain buses, the bolts that secure the steering gearbox can loosen. If this happens, the steering gearbox could separate from the bus and cause a loss of steering control. Safety Risk: A loss of steering could create the risk of a crash. Corrective Actions: Proterra will notify owners by mail and provide new steering gearbox bolts and mechanical fasteners (locking caps).

Canadian data updated August 24, 2026

U.S. NHTSA recalls

09
  • ELECTRICAL SYSTEM#24V655000

    Phoenix Motorcars (Phoenix) is recalling certain 2019-2021 800V Catalyst and 2020-2022 ZX5 transit buses. The vehicle controller software may allow the electrical circuit for the radiator fan to overheat.

    Risk: Electrical circuits that overheat increase the risk of a fire.

    Remedy: Dealers will update the vehicle software, free of charge. Owner notification letters were mailed October 15, 2024. Owners may contact Phoenix customer service at 1-909-987-0815.

  • ELECTRICAL SYSTEM#23V697000

    Proterra Operating Company, Inc. (Proterra) is recalling certain 2019-2022 40' and 35' Catalyst 800V transit buses equipped with ProDrive 1.0, and 40' and 35' ZX5 800V transit buses equipped with ProDrive 1.0. A transistor inside the inverter may overheat and fail, which can result in a loss of power steering and drive power.

    Risk: A loss of power steering and/or drive power increases the risk of a crash.

    Remedy: Dealers will replace the inverter, free of charge. Owner notification letters were mailed December 16, 2023. Owners may contact Proterra customer service at 1-864-438-0000.

  • ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY#22V887000

    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.

    Risk: The accumulation of liquid inside the battery pack enclosure increases the risk of a fire.

    Remedy: 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.

  • STEERING:GEAR BOX (OTHER THAN RACK AND PINION)#22V114000

    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.

    Risk: A loose steering gearbox can cause a loss of steering control, increasing the risk of a crash.

    Remedy: Dealers will install a mechanical fastener and new bolts on the steering gearbox, and install a new torque plate, as necessary, free of charge. Owner notification letters were mailed October 7, 2022. Owners may contact Proterra's customer service at 1-864-438-0000.

  • ELECTRICAL SYSTEM:SOFTWARE#21V268000

    Proterra, Inc. (Proterra) is recalling certain 2019-2020 Catalyst 40 foot buses. A software defect in the body controller that operates the door motor may allow the rear door to open unexpectedly.

    Risk: The rear door may open without the driver's awareness, increasing the risk of injury.

    Remedy: Proterra will notify owners, and dealers will update the software, free of charge. Owner notification letters were mailed on June 11, 2021. Owners may contact Proterra customer service at 1-864-438-0000.

  • STEERING:GEAR BOX (OTHER THAN RACK AND PINION)#20V664000

    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.

    Risk: An unsecured steering gear box could cause the driver to lose the ability to steer the vehicle, increasing the risk of crash or injury.

    Remedy: Proterra will notify owners, and dealers will inspect the steering gear mounting bolts and the plexus adhesive layer between the torque plate and the chassis. If the plexus adhesive layer is missing or insufficient, the components will be repaired, free of charge. The recall began December 10, 2020. Owners may contact Proterra customer service at 1-864-438-0000. Proterra's number for this recall is SC-20-154.

  • STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS#20V621000

    Proterra Inc. (Proterra) is recalling certain 2019-2020 Battery-Electric 40' Catalyst and 2020 Battery-Electric 35' Catalyst buses. The power steering hose located at the pump and reservoir may leak and sweat fluid through the hose.

    Risk: A power steering fluid leak can increase the risk of a crash.

    Remedy: Proterra will notify owners, and dealers will inspect and replace the power steering hose, free of charge. The recall began October 6, 2020. Owners may contact Proterra customer service at 1-864-438-0000. Proterra's number for this recall is SC-20-141.

  • ELECTRICAL SYSTEM:SOFTWARE#19V871000

    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.

    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.

    Remedy: 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.

  • STRUCTURE:EMERGENCY:ESCAPE/EGRESS/EXIT#19V460000

    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.

    Risk: If the tempered glass roof hatch shatters, glass fragments may fall onto passengers, increasing the risk of an injury.

    Remedy: Proterra will notify owners, and the glass hatch manufacturer will provide replacement hatch lids, free of charge. The recall began August 13, 2019. Owners may contact Proterra at 1-864-438-0000. Proterra's number for this recall is SC-19-79.

Does this recall apply to my vehicle?

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What to do

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