NHTSA campaign 20V621000 · Proterra campaign SC-20-141
Proterra Recall 20V-621: Power Steering Hose May Leak
NHTSA recall 20V621000 (Proterra campaign SC-20-141) was reported by Proterra Inc. on October 7, 2020, with 8 vehicles potentially affected (per NHTSA). NHTSA's record lists the Proterra Catalyst for model years 2019–2020. Owners were notified on October 6, 2020, per NHTSA.
Updated daily from NHTSA's recall files
Is my vehicle included?
This page lists, by model year, the vehicles NHTSA's recall record names for campaign 20V621000 in the model years try.vin imports (1995 and later); NHTSA's own record can list more. A model year on the list doesn't mean every vehicle of that year is included, and some may already have been repaired.
To see whether a specific vehicle is included and still needs the repair, enter its VIN at nhtsa.gov/recalls.
Free VIN check: decode a VIN to see its year, make and model.
Key facts
- NHTSA campaign
- 20V621000 (also written 20V-621 or 20V621)
- Filed by
- Proterra Inc.
- Proterra campaign number
- SC-20-141
- Report received
- Potentially affected
- 8 vehicles (per NHTSA)
- Component
- Steering — Hydraulic Power Assist — Hose, Piping, and Connections
- Owners notified
Repair completion: 100% (latest rate the manufacturer reported to NHTSA; dataset updated October 21, 2026)
NHTSA cautions against comparing completion rates across recalls or manufacturers. How try.vin reads them.
Vehicles listed for this recall
NHTSA's recall record lists these vehicles for recall 20V621000. try.vin imports model years 1995 and later, so NHTSA's own list can be longer. Model years with a try.vin recall page link to it. Build dates are NHTSA's range for a model year (per NHTSA); a vehicle built in that range is not necessarily included.
Proterra
All Proterra recallsNHTSA's recall notice
As NHTSA's recall record states it for campaign 20V621000.
Defect description
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.
Safety consequence
A power steering fluid leak can increase the risk of a crash.
Manufacturer 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.
Sources
Official NHTSA notice for recall 20V621000
Campaign details come from NHTSA's recall files, which try.vin imports once a day. The plain-language subject and the completion rate come from the U.S. Department of Transportation's Recalls Data dataset. How try.vin reads recall data.