Proterra · United States · High
Proterra Catalyst: Service brakes — caliper
Affects Proterra Catalyst · 2016–2017 — about 62 vehicles.
The hazard
Breakage of the guide pin can cause loss of braking ability or loss of tire pressure, increasing the risk of a crash.
What to do
Proterra will notify owners and have them replace the calipers on the affected axles, free of charge. 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