NHTSA vehicle safety data
2026 Peterbilt 579
The 2026 Peterbilt 579 has 1 NHTSA recall and 1 owner complaint on record — every open recall is repaired free at an authorized Peterbilt dealer.
Complete safety data for the 2026 Peterbilt 579. Data pulled live from api.nhtsa.gov.
EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE
NHTSA #25V436000Reported June 26, 2025 · PACCAR Incorporated
Defect description
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."
Safety 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.
Free manufacturer 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.