PACCAR Incorporated – Quick Release Valve Missing/FMVSS 121

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.”


Report Received Date 09/16/2021
NHTSA ID 21V720000
Consequence Summary A missing quick release valve cannot ensure correct rear brake release timing, increasing the risk of a crash or injury.
Corrective Action 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.
Recall Code 21PBK
Potentially Affected 15
Fire Risk When Parked No
Do Not Drive No
Recall Link Go to Recall (https://www.nhtsa.gov/recalls?nhtsaId=21V720000)

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