Kenworth, Peterbilt recall — Software

NHTSA · June 26, 2025

• NHTSA recall campaign 25V436000 (Kenworth, Peterbilt), reported June 26, 2025.
• Potentially affected vehicles: 56,260.
• Component: Software.
• Details as of July 25, 2026; the linked official notice is authoritative for lot codes, VINs, and remedies.

Agency

NHTSA

Posted

June 26, 2025

Recalling firm

PACCAR Incorporated

Source ID

25V436000

NHTSA campaign →

Defect

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."

Consequence

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.

Corrective action

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.

Affected vehicles

Related: Vehicle recalls · All recall events