PROTERRA 2017 PROTERRA CATALYST Recall
Check Your Product
According to the National Highway Traffic Safety Administration (NHTSA)
Product
2017 PROTERRA CATALYST
Brand
PROTERRA
Lot Codes / Batch Numbers
Not specified in NHTSA notice. Check official source for details.
Products Sold
Model Year 2017
Proterra Operating Company, Inc. is recalling certain 2017 PROTERRA CATALYST vehicles due to electrical system:propulsion system:traction battery issues. The accumulation of liquid inside the battery pack enclosure increases the risk of a fire..
Summary derived from NHTSA notice
Reason for Recall
As stated by NHTSA
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.
Reported concern (NHTSA)
The accumulation of liquid inside the battery pack enclosure increases the risk of a fire.
Recommended Action
Per NHTSA guidance
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.
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