Every 2021 Proterra Catalyst recall
Each campaign as NHTSA published it: what is wrong, what can happen, and the fix. Newest first.
Electrical System · NHTSA 24V655000
Jun 9, 2024Electrical System
- Problem
- Phoenix Motorcars (Phoenix) is recalling certain 2019-2021 800V Catalyst and 2020-2022 ZX5 transit buses. The vehicle controller software may allow the electrical circuit for the radiator fan to overheat.
- Risk
- Electrical circuits that overheat increase the risk of a fire.
- Fix
- Dealers will update the vehicle software, free of charge. Owner notification letters were mailed October 15, 2024. Owners may contact Phoenix customer service at 1-909-987-0815.
Full recall details for 24V655000 →Electrical System · NHTSA 23V697000
Oct 17, 2023Electrical System
- Problem
- Proterra Operating Company, Inc. (Proterra) is recalling certain 2019-2022 40' and 35' Catalyst 800V transit buses equipped with ProDrive 1.0, and 40' and 35' ZX5 800V transit buses equipped with ProDrive 1.0. A transistor inside the inverter may overheat and fail, which can result in a loss of power steering and drive power.
- Risk
- A loss of power steering and/or drive power increases the risk of a crash.
- Fix
- Dealers will replace the inverter, free of charge. Owner notification letters were mailed December 16, 2023. Owners may contact Proterra customer service at 1-864-438-0000.
Full recall details for 23V697000 →Visibility · NHTSA 23V078000
Feb 13, 2023Visibility:Windshield Wiper/Washer:Motor
- Problem
- Proterra Operating Company, Inc. (Proterra) is recalling certain 2020-2022 35" Catalyst, 35" ZX5, and 40" ZX5 vehicles. The windshield wiper motors may operate intermittently or may fail to operate. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 104, "Windshield Wiping and Washing Systems."
- Risk
- Inoperative windshield wipers can reduce visibility in certain driving conditions, increasing the risk of a crash.
- Fix
- Dealers will replace the wiper motors, free of charge. Owner notification letters were mailed April 3, 2023. Owners may contact Proterra customer service at 1-864-438-0000.
Full recall details for 23V078000 →Parking Brake · NHTSA 22V855000
Nov 18, 2022Parking Brake
- Problem
- 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.
- Risk
- Unintentional engagement of the parking brake increases the risk of a crash.
- Fix
- 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.
Full recall details for 22V855000 →Steering · NHTSA 22V114000
Feb 28, 2022Steering:Gear Box (Other Than Rack and Pinion)
- Problem
- Proterra, Inc. (Proterra) is recalling certain 2017-2019 35 foot Catalyst E2, 2017-2019 40 foot E2, 2020-2021 35 foot RR, 2019-2020 40 foot RR, 2019-2022 40 foot ZX5, and 2020-2022 35 foot ZX5 buses. The plexus adhesive between the torque limiter plate and the bus body may be insufficient, causing the bolts that secure the steering gearbox to loosen.
- Risk
- A loose steering gearbox can cause a loss of steering control, increasing the risk of a crash.
- Fix
- Dealers will install a mechanical fastener and new bolts on the steering gearbox, and install a new torque plate, as necessary, free of charge. Owner notification letters were mailed October 7, 2022. Owners may contact Proterra's customer service at 1-864-438-0000.
Full recall details for 22V114000 →
2021 Proterra Catalyst complaints and service bulletins
Owners filed 1 complaints with NHTSA about the 2021 Proterra Catalyst. Proterra has issued at least 55 technical service bulletins (repair instructions to dealers) for this model year. Complaints are unverified owner reports; a recall is the manufacturer’s admission of a safety defect.
Most-reported components
Service bulletins by component
- Electrical System (25)
- Structure (14)
- Service Brakes (9)
- Fuel/Propulsion System (5)
- Steering (5)
- Suspension (3)
Read Proterra Catalyst owner complaints and bulletins, every year
What people reported
Owners have filed 1 complaints with NHTSA about the 2021 Proterra Catalyst. A few in their own words, shortened. Complaints are unverified and are not proof of a defect or of any recall.
“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.”
2021 PROTERRA CATALYSTSep 25, 2024
Complaint filed with NHTSA, not verified by the agency · NHTSA complaint 11616330
Check your Catalyst by VIN
Not every 2021 Proterra Catalyst is in every recall. Enter your 17-character VIN to see the recalls on record for your exact vehicle, then confirm which are still open at NHTSA.gov or with any Proterra dealer.
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