Vehicle recall 21V268000 · April 19, 2021
2019-2020 Proterra Catalyst
A software defect in the body controller that operates the door motor may allow the rear door to open unexpectedly.
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- Proterra, Inc. (Proterra) is recalling certain 2019-2020 Catalyst 40 foot buses. A software defect in the body controller that operates the door motor may allow the rear door to open unexpectedly.
- Consequence
- The rear door may open without the driver's awareness, increasing the risk of injury.
- Remedy
- Proterra will notify owners, and dealers will update the software, free of charge. Owner notification letters were mailed on June 11, 2021. Owners may contact Proterra customer service at 1-864-438-0000.
- Notes
- Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Recall details
- NHTSA campaign
- 21V268000
- Reported to NHTSA
- April 19, 2021
- Filed by
- Proterra, Inc.
- Manufacturer campaign
- SC-21-085
- Owner notification
- June 11, 2021
- Vehicles potentially affected
- 12
- Initiated by
- the manufacturer
- Components
- Electrical system › Software
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
- Proterra Catalyst (2019-2020): 2020, 2019
Has your Proterra been repaired?
Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.
NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Proterra dealer can also check your VIN. Recall repairs are free.