PROTERRA 2020 PROTERRA CATALYST Recall
Check Your Product
According to the National Highway Traffic Safety Administration (NHTSA)
Product
2020 PROTERRA CATALYST
Brand
PROTERRA
Lot Codes / Batch Numbers
Not specified in NHTSA notice. Check official source for details.
Products Sold
Model Year 2020
Proterra Operating Company, Inc. is recalling certain 2020 PROTERRA CATALYST vehicles due to electrical system issues. A loss of power steering and/or drive power increases the risk of a crash..
Summary derived from NHTSA notice
Reason for Recall
As stated by NHTSA
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.
Reported concern (NHTSA)
A loss of power steering and/or drive power increases the risk of a crash.
Recommended Action
Per NHTSA guidance
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.
Verify this information on the official source
For complete details and official instructions, check the National Highway Traffic Safety Administration (NHTSA) directly.
View official NHTSA recall noticePage updated: Jan 10, 2026