NHTSA Campaign 26V567000

SERVICE BRAKES, AIR:CONTROLS:PROPORTIONING RELAY VALVE

Issued by PACCAR Incorporated · Reported Sep 1, 2026 · 58 vehicles affected

What's wrong

PACCAR Incorporated (PACCAR) is recalling certain 2027 Peterbilt 548 trucks. The front brake valve and hoses may be the incorrect size, which can delay the rear service brake application and release, as well as the trailer gladhand application times. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."

Consequence

Delayed brake response time can increase the risk of a crash.

Remedy

Dealers will replace the front brake valves and hoses, free of charge. Owner notification letters are expected to be mailed October 31, 2026. Owners may contact Peterbilt's customer service at 1-940-591-4220. PACCAR's number for this recall is 26PACF.

Vehicles affected by this recall

Make Model Year Units
PETERBILT 548 2027 58

Source: NHTSA Campaign 26V567000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.