NHTSA Recall 26V567000: Proportioning relay valve (service brakes)
PACCAR Incorporated reported this safety recall to NHTSA on , covering an estimated 58 vehicles. It affects 2027 Peterbilt 548.
| NHTSA campaign | 26V567000 |
|---|---|
| Manufacturer campaign | 26PACF |
| Component | SERVICE BRAKES, AIR › CONTROLS › PROPORTIONING RELAY VALVE |
| Report received | September 1, 2026 |
| Initiated by | Manufacturer |
Defect
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."
Safety risk
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 covered by recall 26V567000
| Make and model | Model years |
|---|---|
| Peterbilt 548 | 2027 |
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.