Check a VIN

August 26, 2022 Service bulletin

Transit bus repair, retrofit adds guard to prevent horn from accumulating road debris.

Proterra technical service bulletin SC-21-121 for 2020 Proterra Catalyst and 2021 Proterra ZX5.

Bulletin number
SC-21-121 (SC-21-121)
Component
Unknown or other
Summary
Transit bus repair, retrofit adds guard to prevent horn from accumulating road debris.

Vehicles covered

VIN decoder

See the problems and recalls for an exact car

Buying a used Proterra Catalyst?

Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.

Check its history