NHTSA Campaign 22V855000

PARKING BRAKE

Issued by Proterra Operating Company, Inc. · Reported Nov 18, 2022 · 386 vehicles affected

What's wrong

Proterra Operating Company, Inc. (Proterra) is recalling certain 2020-2021 Catalyst and 2019-2022 ZX5 transit buses. Back pressure in the shared air exhaust for the pneumatic ride height system and parking brake control valve may engage the parking brake while the vehicle is in motion.

Consequence

Unintentional engagement of the parking brake increases the risk of a crash.

Remedy

Proterra will install a redesigned air circuit, free of charge. Owner notification letters were mailed on December 21, 2022. Owners may contact Proterra's customer service at 1-864-438-0000.

Vehicles affected by this recall

Make Model Year Units
PROTERRA CATALYST 2020 386
PROTERRA CATALYST 2021 386
PROTERRA ZX5 2019 386
PROTERRA ZX5 2020 386
PROTERRA ZX5 2021 386
PROTERRA ZX5 2022 386

Source: NHTSA Campaign 22V855000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.