01 / OFFICIAL CAMPAIGNS
2022 Proterra ZX5 recall campaigns
NHTSA 24V655000
- Component
- ELECTRICAL SYSTEM
- Report received
- September 6, 2024
- Potential units
- 483campaign-wide
Defect and consequence
Defect: 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.
Why it matters: 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.
Owner notification: October 15, 2024 · Filing manufacturer: Phoenix Motorcars
NHTSA 23V697000
- Component
- ELECTRICAL SYSTEM
- Report received
- October 17, 2023
- Potential units
- 238campaign-wide
Defect and consequence
Defect: 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.
Why it matters: 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.
Owner notification: December 16, 2024 · Filing manufacturer: Proterra Operating Company, Inc.
NHTSA 23V078000
- Component
- VISIBILITY
- Report received
- February 13, 2023
- Potential units
- 252campaign-wide
Defect and consequence
Defect: Proterra Operating Company, Inc. (Proterra) is recalling certain 2020-2022 35" Catalyst, 35" ZX5, and 40" ZX5 vehicles. The windshield wiper motors may operate intermittently or may fail to operate. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 104, "Windshield Wiping and Washing Systems.".
Why it matters: Inoperative windshield wipers can reduce visibility in certain driving conditions, increasing the risk of a crash.
Remedy
Dealers will replace the wiper motors, free of charge. Owner notification letters were mailed April 3, 2023. Owners may contact Proterra customer service at 1-864-438-0000.
Owner notification: April 3, 2023 · Filing manufacturer: Proterra Operating Company, Inc.
NHTSA 22V855000
- Component
- PARKING BRAKE
- Report received
- November 18, 2022
- Potential units
- 386campaign-wide
Defect and consequence
Defect: Proterra Operating Company, Inc. (Proterra) is recalling certain 2020-2021 Catalyst and 2019-2022 ZX5 transit buses. Back pressure in the shared air exhaust for the pneumatic ride height system and parking brake control valve may engage the parking brake while the vehicle is in motion.
Why it matters: Unintentional engagement of the parking brake increases the risk of a crash.
Remedy
Proterra will install a redesigned air circuit, free of charge. Owner notification letters were mailed on December 21, 2022. Owners may contact Proterra's customer service at 1-864-438-0000.
Owner notification: December 21, 2022 · Filing manufacturer: Proterra Operating Company, Inc.
NHTSA 22V829000
- Component
- ELECTRICAL SYSTEM
- Report received
- November 7, 2022
- Potential units
- 3campaign-wide
Defect and consequence
Defect: Proterra Operating Company, Inc. (Proterra) is recalling certain 2022 ZX5 transit buses. The interlock override switch was not installed during production.
Why it matters: Without the switch, the driver may be unable to override the interlock system and move the bus, necessitating the transfer of passengers to another bus and increasing the risk of injury.
Remedy
Proterra will provide installation instructions and an interlock override switch, free of charge. Owner notification letters were mailed January 9, 2023. Owners may contact Proterra customer service at 1-864-438-0000.
Owner notification: January 9, 2023 · Filing manufacturer: Proterra Operating Company, Inc.
NHTSA 22V114000
- Component
- STEERING
- Report received
- February 28, 2022
- Potential units
- 724campaign-wide
Defect and consequence
Defect: 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.
Why it matters: 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.
Owner notification: October 7, 2022 · Filing manufacturer: Proterra, Inc.
02 / COMPONENT BREADTH