Service bulletin 26PACF
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Service bulletin |
|---|---|
| NHTSA id | 11038568 |
| Published by NHTSA | 2026-10-17 |
| Manufacturer's number | 26PACF |
| Manufacturer's date | 2026-10-07 |
| NHTSA component | SERVICE BRAKES |
NHTSA's summary
Certain Model 548 chassis equipped with tri-drive brake piping are non-compliant with Federal MotorVehicle Safety Standard (FMVSS) 121 / Canadian Motor Vehicle Safety Standard (CMVSS) 121 rearservice brake application, rear service brake release, and trailer gladhand application times. A vehiclethat does not meet these brake timing requirements could present an increased risk of a crash or injury.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Brakes
| PETERBILT 548 | 2027 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 2026420 | 2026-09-01. Brakes |
|---|---|
| 26V567000 | 2026-09-01. SERVICE BRAKES, AIR:CONTROLS:PROPORTIONING RELAY VALVE |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.