Proterra ZX5, Catalyst: Steering

Affects Proterra ZX5, Catalyst · 2019–2022 — about 90 vehicles.

The hazard

Issue: On certain buses, the bolts that secure the steering gearbox can loosen. If this happens, the steering gearbox could separate from the bus and cause a loss of steering control. Safety Risk: A loss of steering could create the risk of a crash. Corrective Actions: Proterra will notify owners by mail and provide new steering gearbox bolts and mechanical fasteners (locking caps).

What to do

Contact your dealer; the remedy details were not included in the filing.

Critical — crash/injury risk now High — injury risk; see remedy Moderate — fix at next service Low — minor / informational