Every 2026 Peterbilt 579 recall
Each campaign as NHTSA published it: what is wrong, what can happen, and the fix. Newest first.
Service Brakes, Air · NHTSA 26V442000
Jul 8, 2026Service Brakes, Air:Supply:Quick Release Valve
- Problem
- 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.
- Fix
- 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.
Full recall details for 26V442000 →Exterior Lighting · NHTSA 25V436000
Jun 26, 2025Exterior Lighting:Lighting Control Module:Software
- Problem
- 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.
- Fix
- 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.
Full recall details for 25V436000 →
2026 Peterbilt 579 complaints and service bulletins
Owners filed 1 complaints with NHTSA about the 2026 Peterbilt 579, reporting 1 injuries. Peterbilt has issued at least 51 technical service bulletins (repair instructions to dealers) for this model year. Complaints are unverified owner reports; a recall is the manufacturer’s admission of a safety defect.
Most-reported components
Service bulletins by component
- Engine (26)
- Electrical System (11)
- Unknown Or Other (10)
- Power Train (5)
- Exterior Lighting (2)
- Forward Collision Avoidance (1)
Read Peterbilt 579 owner complaints and bulletins, every year
What people reported
Owners have filed 1 complaints with NHTSA about the 2026 Peterbilt 579. A few in their own words, shortened. Complaints are unverified and are not proof of a defect or of any recall.
Injury reported
“The contact was the operator of a 2026 Peterbilt 579 for an employer.”
2026 PETERBILT 579Aug 22, 2025
Complaint filed with NHTSA, not verified by the agency · NHTSA complaint 11682362
Check your 579 by VIN
Not every 2026 Peterbilt 579 is in every recall. Enter your 17-character VIN to see the recalls on record for your exact vehicle, then confirm which are still open at NHTSA.gov or with any Peterbilt dealer.
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