Recall · 26V567000
PACCAR Incorporated recalled the PETERBILT 548 over service brakes, air
58
Vehicles covered
1
Model
1
Model years
September 1, 2026
Filed with NHTSA
SERVICE BRAKES, AIR:CONTROLS:PROPORTIONING RELAY VALVE
- The 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."
- What it can cause
- Delayed brake response time can increase the risk of a crash.
- What the dealer does
- 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.
The repair is free, whatever the age or mileage of the vehicle, and whether or not you are the original owner.
Which vehicles
A recall reaches a range of VINs inside these model years, not every car built in them. Yours may not be covered even if it is listed here, and the only way to find out is NHTSA's own VIN lookup .
| Vehicle | Model years | Safety record |
|---|---|---|
| Peterbilt548 | 2027 | Not published here |
How this campaign compares
At 58 vehicles this is a small campaign: 76% of the 19,818 vehicle recalls filed since 1995 whose size NHTSA published are as large or larger. The middle campaign on file covers 472. It covers one model year, 2027, and the defect was reported to NHTSA in 2026, at or before the oldest model year it covers — as current as a recall gets.
Peterbilt vehicles have been recalled over the service brakes, air 21 times before this, most recently in July 2026 as 26V442000. That is not evidence the earlier repair failed.
The vehicles on this campaign carry one other recall published here: 26V485000 (electrical system).
Check your own car
A VIN check is the only answer for a specific vehicle, and it also shows every other open recall on it, which is usually the reason it is worth doing rather than reading one campaign.
Filed by PACCAR Incorporated with NHTSA on September 1, 2026 as campaign 26V567000. Every word of the defect, consequence and remedy above is NHTSA's published record of that filing, not a summary of it.
Compiled and maintained by guarledes . Data last checked 2026-09-01.
Independent developer and analyst