NHTSA vehicle safety data
2027 Peterbilt 579 Recalls, Ratings & Complaints
The 2027 Peterbilt 579 has 3 NHTSA recall campaigns and 0 owner complaints on file as of October 16, 2026. Recall repairs are usually free at an authorized Peterbilt dealer.
NHTSA recall and complaint data for the 2027 Peterbilt 579. Recall data is refreshed daily from NHTSA.
SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER
NHTSA #26V544000Reported August 21, 2026 · PACCAR Incorporated
Potentially affected: 811 vehicles
Defect description
PACCAR Incorporated (PACCAR) is recalling certain 2027 Peterbilt 567, 579, 589 and 2027 Kenworth T680, T880, and W990 vehicles. The seat ventilation harness may be missing heat-shrink, resulting in a short circuit.
Safety consequence
A short circuit increases the risk of a fire.
Manufacturer remedy
Dealers will replace the harnesses, free of charge. Owner notification letters are expected to be mailed October 20, 2026. Owners may contact Peterbilt's customer service at 1-940-591-4220 or Kenworth's customer service at 1-425-828-5888. PACCAR's number for this recall is 26PACE.
ELECTRICAL SYSTEM:WIRING:POWER DISTRIBUTION MODULE/IPDM
NHTSA #26V485000Reported July 27, 2026 · PACCAR Incorporated
Potentially affected: 5,925 vehicles
Defect description
PACCAR Incorporated (PACCAR) is recalling certain 2027 Peterbilt and Kenworth vehicles. Please see the recall report for a complete list of models. The power distribution center (PDC) box may be contaminated with oil, which could result in a loss of drive power, Antilock Brake System (ABS) functionality, exterior lighting, windshield wipers, or the defogging system. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard numbers 103, "Windshield Defrosting and Defogging Systems," 104, "Windshield Wiping and Washing Systems," and 108, "Lamps, Reflective Devices, and Associated Equipment."
Safety consequence
A loss of lighting, windshield wipers, ABS function, or a loss of drive power can increase the risk of a crash.
Manufacturer remedy
Dealers will inspect the PDC serial numbers, and replace the PDC boxes as necessary, free of charge. Owner letters were mailed September 23, 2026. 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 26PACD.
SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
NHTSA #26V442000Reported July 8, 2026 · PACCAR Incorporated
Potentially affected: 8 vehicles
Defect description
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 consequence
An incorrectly installed quick release valve that does not function properly can increase the risk of a crash.
Manufacturer 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.
Other Peterbilt 579 model years
Check your 2027 Peterbilt 579 VIN
Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Peterbilt 579 at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.
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