Vehicle recall 20V621000 · October 7, 2020
2019-2020 Proterra Catalyst
The power steering hose located at the pump and reservoir may leak and sweat fluid through the hose.
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 Battery-Electric 40' Catalyst and 2020 Battery-Electric 35' Catalyst buses. The power steering hose located at the pump and reservoir may leak and sweat fluid through the hose.
- Consequence
- A power steering fluid leak can increase the risk of a crash.
- Remedy
- Proterra will notify owners, and dealers will inspect and replace the power steering hose, free of charge. The recall began October 6, 2020. Owners may contact Proterra customer service at 1-864-438-0000. Proterra's number for this recall is SC-20-141.
- 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
- 20V621000
- Reported to NHTSA
- October 7, 2020
- Filed by
- Proterra Inc.
- Manufacturer campaign
- SC-20-141
- Owner notification
- October 6, 2020
- Vehicles potentially affected
- 8
- Initiated by
- the manufacturer
- Components
- Steering › Hydraulic power assist › Hose, piping, and connections
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.