CarRecallWatchThe 2021 Proterra Catalyst has 5 safety recalls on file with NHTSA.
Owners have filed 1 complaint with NHTSA.
The most-reported problem area is Electrical System (1 report).
2021 Proterra Catalyst recalls
Software Flaw Can Overheat Fan Circuit, Raising Fire Risk
Certain electric transit buses have vehicle controller software that may allow the electrical circuit for the radiator fan to overheat.
Transit buses may lose steering and drive power
Certain 2019-2022 Proterra Catalyst and ZX5 transit buses equipped with ProDrive 1.0 have an electrical defect: a transistor inside the inverter may overheat and fail.
Windshield Wipers May Stop or Work Intermittently
The windshield wiper motors in these buses may run intermittently or fail to operate at all.
Parking Brake Can Engage While Driving, Raising Crash Risk
Back pressure in the shared air exhaust for the ride height system and parking brake control valve can cause the parking brake to engage while the bus is moving.
Loose Steering Gearbox Can Cause Loss of Steering Control
The steering gearbox bolts may loosen because the adhesive bonding the torque limiter plate to the bus body may be insufficient.
Most common 2021 Proterra Catalyst problems
Problem areas named in the 1 complaints owners filed with NHTSA.
| Problem area | Reports |
|---|---|
| Electrical System | 1 |
What owners report
The contact called on behalf of the University that owns several 2021 Proterra Catalyst Transit Bus. The University received notification of NHTSA Campaign Number: 23V697000 (Electrical System); however, the part to do the recall repair was unavailable. The local dealer was contacted, and it was confirmed that the part was not available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact stated that there was an unstated electrical failure with one of the buses, rendering the bus inoperable. The cause of the failure was not yet determined. The vehicle was not repaired. The contact
2021 Proterra Catalyst questions
Does the 2021 Proterra Catalyst have any recalls?
Yes. NHTSA lists 5 safety recalls for the 2021 Proterra Catalyst: Software Flaw Can Overheat Fan Circuit, Raising Fire Risk; Transit buses may lose steering and drive power; Windshield Wipers May Stop or Work Intermittently; Parking Brake Can Engage While Driving, Raising Crash Risk; Loose Steering Gearbox Can Cause Loss of Steering Control. Recall repairs are normally free at an authorized dealer.
What are the most common problems with the 2021 Proterra Catalyst?
Based on 1 owner complaint filed with NHTSA, the most-reported problem areas are Electrical System (1).
How do I check if a recall on my 2021 Proterra Catalyst has been fixed?
Enter your 17-character VIN in our VIN recall check. It shows open recalls that have not been repaired on your specific vehicle. Recall repairs are normally free at an authorized dealer.