NHTSA Recall 26V442000: Quick release valve (service brakes)
PACCAR Incorporated reported this safety recall to NHTSA on , covering an estimated 8 vehicles. It affects 2 models including the Kenworth T680.
| NHTSA campaign | 26V442000 |
|---|---|
| Manufacturer campaign | 26PACC |
| Component | SERVICE BRAKES, AIR › SUPPLY › QUICK RELEASE VALVE |
| Report received | July 8, 2026 |
| Initiated by | Manufacturer |
Defect
PACCAR Incorporated (PACCAR) is recalling certain 2026-2027 Peterbilt 579 and 2027 Kenworth T680 tractors. The trailer air connection quick release (QR) valve in the air brake system may have been incorrectly installed, which can cause the trailer to become unstable after the driver applies the brakes. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."
Safety risk
An incorrectly installed quick release valve that does not function properly can increase the risk of a crash.
Remedy
Paccar inspected and reinstalled the valves, as necessary, free of charge. All affected tractors have been repaired and therefore no owner notification letters are necessary. Owners may contact Peterbilt's customer service at 1-940-591-4220 and Kenworth's customer service at 1-425-828-5888. PACCAR's number for this recall is 26PACC.
Vehicles covered by recall 26V442000
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.