Peterbilt recall 26V-567: Delayed Brake Timing/FMVSS 121
Delayed brake response time can increase the risk of a crash.
Campaign facts
- NHTSA campaign
- 26V567000 (26V-567)
- Manufacturer number
- 26PACF
- Filed by
- PACCAR Incorporated
- Report received
- September 1, 2026
- Component
- Service brakes, air:controls:proportioning relay valve
- Vehicles potentially affected
- 58
- Model years
- 2027
- Built between
- January 30, 2026 and August 13, 2026
- Owner letters
- October 21, 2026
- Recall initiated by
- The manufacturer
- Safety standard
- FMVSS 121
What is wrong
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.
Why brake defects matter: Reduced braking or a loss of brake assist lengthens stopping distance and increases the risk of a crash.
The 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.
About the brakes
The service brakes are the system you use every time you press the pedal — hydraulic or air components plus the electronic controls that manage them.
Vehicles covered by campaign 26V-567
- Peterbilt 548 2027
What to do
- Enter your VIN in NHTSA’s lookup (below) to confirm that your vehicle is included and that the repair has not already been done.
- Call a dealer for the brand and book the repair. Quote NHTSA campaign 26V-567 and the manufacturer’s number 26PACF.
- If a brake warning lamp comes on or the pedal feels different, have the vehicle inspected before you keep driving it.
- Safety recall repairs are carried out free of charge by the manufacturer’s dealers. If you already paid for this repair yourself, ask the manufacturer about reimbursement and keep your receipt.
Check by VIN
A campaign rarely covers every vehicle of a model year. Enter your 17-character VIN to find the recall campaigns filed for your make, model and model year. The VIN is on the driver’s side of the dashboard (visible through the windshield), on the door-jamb label, and on your registration and insurance documents.
Is a recall still open on your vehicle? Only NHTSA’s official VIN check can say whether a campaign applies to your exact vehicle and whether the repair has already been done.
Your VIN is decoded with NHTSA’s public vPIC service to identify the make, model and year. It is not stored and is not added to any page address.
The official record
This page reproduces the campaign as filed with NHTSA. The NHTSA record is authoritative — if anything here differs, follow the agency.
Open campaign 26V-567 on NHTSA.gov