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2027 Peterbilt 548 recall: Delayed Brake Timing/FMVSS 121

Report received by NHTSA: Sept. 1, 2026.

Built by the Tribune's code from NHTSA's official records. No AI wrote this page. Updated Nov. 4, 2026.

What's recalled

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."

The risk

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

Who's affected

58 vehicles potentially affected, according to NHTSA. Models: 2027 Peterbilt 548.

Compared with

PACCAR Incorporated has 7 NHTSA recalls in 2026 so far, compared with 8 in all of 2025.

Counted by the Tribune from NHTSA's records since Nov. 1, 2016.

What to do and when

Dealers will replace the front brake valves and hoses, free of charge. Owner notification letters were mailed October 21, 2026. Owners may contact Peterbilt's customer service at 1-940-591-4220. PACCAR's number for this recall is 26PACF.

NHTSA's record, word for word

Check it yourself

NHTSA's VIN lookup shows whether a specific vehicle has an open recall.

  • Peterbilt 548 2027
NHTSA recall number26V567000
ManufacturerPACCAR Incorporated
Recall typeVehicle
ComponentSERVICE BRAKES, AIR
Report received by NHTSASept. 1, 2026
Potentially affected58 vehicles
Manufacturer's recall number26PACF
“Do not drive” warningNo
Fire risk when parked (“park outside”)No

Source: National Highway Traffic Safety Administration recall records (public domain). NHTSA's record