Proterra Operating Company, Inc.: Safety Recalls in 2022
Updated on March 19, 2026.
There were 6 safety recalls made by Proterra Operating Company, Inc. in 2022. See the details of the recalls below.
You can also see similar information for other manufacturers.
Data Source: NHTSA.
November 30, 2022
(Campaign #: NR (Not Reported))
Liquid in Battery Packs May Cause Fire
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.
NHTSA ID: 22V887000
Component: ELECTRICAL SYSTEM
# of Units Affected: 300
Consequence Summary:
The accumulation of liquid inside the battery pack enclosure increases the risk of a fire.
Corrective Action:
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.
Park Outside Advisory: No
Do not Drive Advisory: No
Completion Rate (%): 54.67
November 18, 2022
(Campaign #: SC-22-158)
Parking Brake Can Unintentionally Engage
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.
NHTSA ID: 22V855000
Component:
# of Units Affected: 386
Consequence Summary:
Unintentional engagement of the parking brake increases the risk of a crash.
Corrective Action:
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.
Park Outside Advisory: No
Do not Drive Advisory: No
Completion Rate (%): 88.08
November 7, 2022
(Campaign #: NR (Not Reported))
Interlock Override Switch Not Installed
Proterra Operating Company, Inc. (Proterra) is recalling certain 2022 ZX5 transit buses. The interlock override switch was not installed during production.
NHTSA ID: 22V829000
Component:
# of Units Affected: 3
Consequence Summary:
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.
Corrective Action:
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.
Park Outside Advisory: No
Do not Drive Advisory: No
Completion Rate (%): 100
July 29, 2022
(Campaign #: NR (Not Reported))
Battery Management System Shutdown
Proterra Operation Company, Inc. (Proterra) is recalling certain battery packs, model number S1-15, with part numbers 129-6202, 139-6181, and 163-3642. An insufficient connection in the battery pack may cause the battery management system to shut down unexpectedly.
NHTSA ID: 22E065000
Component: ELECTRICAL SYSTEM
# of Units Affected: 99
Consequence Summary:
An unexpected battery management system shut down can result in a sudden loss of drive power, increasing the risk of a crash.
Corrective Action:
Proterra will replace the battery pack, free of charge. Owner notification letters were mailed November 26, 2022. Owners may contact Proterra's customer service at 1-864-438-0000.
Park Outside Advisory: No
Do not Drive Advisory: No
June 21, 2022
(Campaign #: SC-22-025)
Improperly Connected High Voltage Battery Cable
Proterra Operation Company, Inc. (Proterra) is recalling certain High Voltage Junction Box (HVJB) DC Links, with part number 051071. A high voltage battery cable may not be properly connected, which can cause a loss of electrical power or a ground short circuit.
NHTSA ID: 22E052000
Component: ELECTRICAL SYSTEM
# of Units Affected: 185
Consequence Summary:
An unexpected engine shutdown can increase the risk of a crash. Additionally, a disabled school bus may require an evacuation procedure in an uncontrolled traffic situation, increasing the risk of injury to passengers. A ground short circuit can increase the risk of a fire.
Corrective Action:
Proterra will inspect and repair, or replace the battery cable, as necessary, free of charge. Owner notification letters were mailed September 12, 2022. Owners may contact Proterra's customer service at 1-864-438-0000. Proterra's number for this recall is SC-22-025.
Park Outside Advisory: No
Do not Drive Advisory: No
Completion Rate (%): 100
February 28, 2022
(Campaign #: SC-22-040)
Steering Gearbox May Loosen
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.
NHTSA ID: 22V114000
Component: STEERING
# of Units Affected: 724
Consequence Summary:
A loose steering gearbox can cause a loss of steering control, increasing the risk of a crash.
Corrective Action:
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.
Park Outside Advisory: No
Do not Drive Advisory: No
Completion Rate (%): 84.81
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