CarRecallWatch- Component
- SERVICE BRAKES, AIR:CONTROLS:PROPORTIONING RELAY VALVE
- Problem
- 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."
- 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 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.
What this recall means for you
This recall covers certain trucks where the front brake valve and hoses may be the wrong size. That can delay when the rear service brakes apply and release, and when trailer brakes respond through the gladhand connections. The brakes may not respond as quickly as designed, and the vehicle also fails to meet Federal Motor Vehicle Safety Standard 121 for air brake systems.
Delayed brake response can increase the risk of a crash. Owners should contact Peterbilt customer service at 1-940-591-4220 for more information. Owner notification letters were mailed October 21, 2026.
The remedy is free. Authorized dealers will replace the front brake valves and hoses at no charge. You can also check your vehicle identification number (VIN) for any open recalls.
Check whether this recall is open on your vehicle
Official recall notice
Affected vehicles
| Peterbilt 548 | 2027 |
|---|