Paccar: Incorrectly Installed Quick Release Valve (service Brakes, Air)

Recall Summary PACCAR is recalling certain 2026-2027 Peterbilt 579 and 2027 Kenworth T680 tractors because a quick release valve in the air brake system may have been installed incorrectly, which could cause the trailer to become unstable when brakes are applied. This installation error violates federal safety standards for air brake systems. PACCAR has already inspected and repaired all affected vehicles at no cost to owners.

Recalling firm
PACCAR Incorporated
Product
Component: SERVICE BRAKES, AIR. PACCAR Incorporated (PACCAR) is recalling certain 2026-2027 Peterbilt 579 and 2027 Kenworth T680 tractors. The trailer air connection quick release (QR) valve in the air brake system may have been incorrectly installed, which can cause the trailer to become unstable after the driver applies the brakes. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."
Reason
An incorrectly installed quick release valve that does not function properly can increase the risk of a crash. Remedy: Paccar inspected and reinstalled the valves, as necessary, free of charge. All affected tractors have been repaired and therefore no owner notification letters are necessary. Owners may contact Peterbilt's customer service at 1-940-591-4220 and Kenworth's customer service at 1-425-828-5888. PACCAR's number for this recall is 26PACC.
Classification
Class I
Category
vehicle recall
Country
United States
Agency
National Highway Traffic Safety Administration
Recall date
2026-07-08
Status
Ongoing
Distribution
Nationwide

Official recall notice from National Highway Traffic Safety Administration

Recall details on Nibble Recalls: https://trynibble.app/recalls/76ff6947-d375-4e55-a0dd-daeae435fbba