Peterbilt recall: Service brakes, air
What is wrong
PACCAR Incorporated (PACCAR) is recalling certain 2020-2021 Peterbilt 520 vehicles. The quick release valve on the rear brake signal hose may be missing. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."
What could happen
A missing quick release valve cannot ensure correct rear brake release timing, increasing the risk of a crash or injury.
The fix
Dealers will inspect the vehicles for a missing quick release valve, and install one if necessary, free of charge. Owner notification letters were mailed on October 7, 2021. Owners may contact PACCAR's customer service at 1-940-591-4220 (Peterbilt). PACCAR's number for this recall is 21PBK.
Vehicles covered
- Peterbilt 520 2020–2021
Facts
- NHTSA recall number
- 21V720000
- Type
- Vehicle
- Filed by
- Paccar Incorporated
- Reported to NHTSA
- Sep 16, 2021
- Owners notified
- Oct 7, 2021
- Vehicles or items affected
- 15
- Started by
- The manufacturer
- Built
- –
- Part
- Service brakes, air
- Maker's own recall number
- 21PBK
- Safety standard
- FMVSS 121
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.nhtsa.gov.
Other recalls for the same vehicles
- Kenworth / Peterbilt recall: Steering Jan 19, 2026
- Kenworth / Peterbilt recall: Exterior lighting Jun 26, 2025
- Kenworth / Peterbilt recall: Electrical system Mar 24, 2025
- Kenworth / Peterbilt recall: Electrical system Dec 9, 2024
- Kenworth / Peterbilt recall: Steering Dec 3, 2024
- Kenworth / Peterbilt recall: Steering Jun 12, 2024
To check one car, enter its 17-character VIN on the official NHTSA page: a recall may cover only some vehicles of a model year.
Recall data: National Highway Traffic Safety Administration (NHTSA). Nebula is not affiliated with or endorsed by NHTSA.