Proterra · United States · Crit
Proterra Catalyst: Electrical system — traction battery
Affects Proterra Catalyst · 2017–2019 — about 300 vehicles.
The hazard
The accumulation of liquid inside the battery pack enclosure increases the risk of a fire.
What to do
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.
Critical — crash/injury risk now
High — injury risk; see remedy
Moderate — fix at next service
Low — minor / informational