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NHTSA Recall 23V661000: Service brakes, air

PACCAR Incorporated reported this safety recall to NHTSA on , covering an estimated 254 vehicles. It affects 6 models including the Kenworth T280.

254
vehicles potentially affected
6
models affected
2024
owners notified (January 15)
NHTSA campaign23V661000
Manufacturer campaign23KWJ, 23PBJ
ComponentSERVICE BRAKES, AIR
Report receivedSeptember 29, 2023
Owner notificationJanuary 15, 2024
Initiated byManufacturer

Defect

PACCAR Incorporated (PACCAR) is recalling certain 2021-2024 Kenworth T280, T380, 2020-2024 Peterbilt 548, 536, 2024 Peterbilt 537, and 2020-2024 Kenworth T480 trucks. The timing of the trailer brake release may be delayed. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."

Safety risk

A delay in the trailer brake release can create instability to the trailer and increase the risk of a crash.

Remedy

Dealers will replace the fittings and hoses in the affected valves, free of charge. Owner letters were mailed January 15, 2024. Owners may contact Kenworth's customer service at 1-425-828-5888 and Peterbilt's customer service at 1-940-591-4220. PACCAR's numbers for this recall are 23KWJ and 23PBJ.

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.

Vehicles covered by recall 23V661000

Make and modelModel years
Kenworth T2802021, 2022, 2023, 2024
Kenworth T3802021, 2022, 2023, 2024
Kenworth T4802020, 2021, 2022, 2023, 2024
Peterbilt 5362020, 2021, 2022, 2023, 2024
Peterbilt 5372024
Peterbilt 5482020, 2021, 2022, 2023, 2024

Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.