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2 open safety recalls recorded with NHTSA. A recall repair is free at a franchised dealer, whatever the age of the vehicle.

  1. SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE

    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."

    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.

    NHTSA campaign 26V442000 · PACCAR Incorporated · Reported 09/07/2026

  2. EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE

    PACCAR Incorporated (PACCAR) is recalling certain 2024-2026 Kenworth T480, T680, T880, W990, Peterbilt 520, 536, 537, 548, 567, 579, 589, 2025 Kenworth T180, Peterbilt 535, 2025-2026 Kenworth T280, T380 and L770 vehicles. The tail brake light, upper and lower beam headlights, reverse light, and turn signal may not illuminate as intended. In addition, the lift axles, if lowered, may revert to a raised position, or oscillate up and down when the signal warning lights are activated. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices and Associated Equipment."

    Risk
    Delayed and unsteady headlights can result in insufficient illumination of the road, decreasing the driver's visibility and increasing the risk of a crash. In addition, an unexpected position change of the lift axles may increase the risk of injury.
    Remedy
    Dealers will update the VCU software, free of charge. Owner letters were mailed August 19, 2025. Owners may contact Kenworth's customer service at 1-425-828-5888 and Peterbilt's customer service at 1-940-591-4220. PACCAR's number for this recall is 25PACF.

    NHTSA campaign 25V436000 · PACCAR Incorporated · Reported 26/06/2025

Is your 2026 Peterbilt 579 affected?

A recall applies to a range of vehicles, not to every one built that year. Check your VIN to see which of these are open on yours.

Source: NHTSA public recall database.

Recalls are issued every week. Most owners hear late.

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Recall information comes from the National Highway Traffic Safety Administration, last updated 2026-07-09. DriveDocket is not affiliated with NHTSA, Peterbilt, or any vehicle manufacturer. Confirm any recall with a franchised dealer before relying on it.

All Peterbilt recalls

2026 Peterbilt 579 recalls — DriveDocket