Proterra · United States · High
Proterra Catalyst: Service brakes — reservoir/tank
Affects Proterra Catalyst · 2016–2018 — about 55 vehicles.
The hazard
Built-up of moisture in the air brake system may lead to brake failure, increasing the risk of crash.
What to do
Proterra will notify owners, and dealers will install a supply reservoir with a drain between the air dryer and the air supply manifold, free of charge. The recall is expected to begin March 28, 2019. Owners may contact Proterra 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