2025 Peterbilt 579 recalls

• Lights And Instruments#2025357June 26, 2025

  4,428 units affected

  Issue: On certain trucks, a software problem could cause the stop lamps, low beam headlamps, high beam headlamps, reverse lamps and turn signal lamps not to turn on, or to turn on unexpectedly. This problem could also cause the lift axle(s) to raise or lower on their own. Safety Risk: Lamps that don't work properly could reduce visibility and increase the risk of a crash. Lift axles that move unexpectedly could increase the risk of injury. Corrective Actions: PACCAR will notify owners by mail and advise you to take your truck to a dealership to update the vehicle software.

• High Voltage#2025150March 24, 2025

  47 units affected

  Issue: On certain electric trucks, the contactors for the high-voltage power system could open. If this happens, there could be a sudden loss of power to the wheels. Safety Risk: A loss of power to the wheels could increase the risk of a crash. Corrective Actions: PACCAR will notify owners by mail and advise you to take your truck to a dealership to update the vehicle software and replace a wiring harness.

• Brakes#2024744December 9, 2024

  23,441 units affected

  Issue: On certain trucks, poor signal strength could cause the electronic control unit (ECU) to stop working or not to work properly. As a result, some safety systems may not work, including the antilock braking system, automatic traction control, electronic stability control, active cruise control and the collision mitigation system. Safety Risks: Vehicle safety systems that don't work correctly could increase the risk of a crash. Corrective Actions: PACCAR will notify owners by mail and advise you to take your truck to a dealership to reprogram the ECU software.

• Fuel System#2024630October 23, 2024

  564 units affected

  Issue: On certain trucks equipped with a Cummins X15 engine, the fuel pump may not have been manufactured properly. As a result, the fuel pump barrels could break and cause a fuel leak. If this happens, the engine could stall. Safety Risk: A sudden loss of engine power could increase the risk of a crash. Corrective Actions: Cummins will notify owners by mail and advise you to take your vehicle to a Cummins authorized service facility to replace the fuel pump barrels.

• Steering#2024335June 12, 2024

  757 units affected

  Issue: On certain trucks, the ball stud on the drag link and/or tie rod may not have been manufactured properly. As a result, the stud could fail and cause a loss of steering control. Safety Risk: A loss of steering control could create the risk of a crash. Corrective Actions: PACCAR advises not to drive the truck until the recall repairs are completed. PACCAR will notify owners by mail and advise you to contact a dealership to arrange for an inspection. The dealer will replace the drag link and/or tie rod, as necessary.

• Steering#2024197March 27, 2024

  88 units affected

  Issue: On certain trucks, the steering gear may not have been manufactured properly. As a result, the steering gear could break and there could be a sudden increase in steering effort. Safety Risk: A sudden increase in steering effort could increase the risk of a crash. Corrective Actions: PACCAR will notify owners by mail and advise you to take your truck to a dealership to inspect the serial number on the steering gear and, if necessary, replace it.

• Steering#2024036January 25, 2024

  2,651 units affected

  Issue: On certain trucks, the steering gear may not have been assembled correctly. As a result, the steering gear could break and cause a loss of steering. Safety Risk: A loss of steering control could create the risk of a crash. Corrective Actions: PACCAR will notify owners by mail and instruct you to take your truck to a dealership to inspect the serial number on the steering gear and, if necessary, replace it.

Canadian data updated August 24, 2026

• EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE#25V436000June 26, 2025

  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.

• ELECTRICAL SYSTEM:PROPULSION SYSTEM#25V181000March 24, 2025

  PACCAR Incorporated (PACCAR) is recalling certain 2022-2025 Peterbilt 520, 579, and 2021-2025 Kenworth T680 trucks. The high voltage (HV) contactors may open, causing a sudden loss of high voltage and a loss of drive power.

  Risk: A loss of drive power increases the risk of a crash.

  Remedy: Dealers will update the software and replace the electrical harness, free of charge. Owner notification letters were mailed May 13, 2025. Owners may contact Peterbilt's customer service at 1-940-591-4220 and Kenworth's customer service at 1-425-828-5888. PACCAR's numbers for this recall are 25PBC and 25KWC.

• SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE#24V915000December 10, 2024

  PACCAR Incorporated (PACCAR) is recalling certain 2021-2025 Peterbilt and Kenworth vehicles, equipped with Bendix EC80 Advanced Electronic Control Units (ECU). Please see the recall report for a complete list of models. Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop functioning.

  Risk: Safety systems that depend on the ECU (Automatic Traction Control, ABS, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System) may not function properly or at all, increasing the risk of a crash.

  Remedy: Dealers will reprogram the ECU software, free of charge. Owner notification letters were mailed February 3, 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 numbers for this recall are 24KWL and 24PBL.

• FUEL SYSTEM, DIESEL:DELIVERY:FUEL PUMP#24V789000October 23, 2024

  PACCAR Incorporated (PACCAR) is recalling certain 2025 Kenworth C500, T680, T800, T880, W900, W990, Peterbilt 567, 579, and 589 trucks, equipped with Cummins X15 diesel engines. The fuel pump barrels may fracture and cause a fuel leak, which can result in an engine stall.

  Risk: An engine stall increases the risk of a crash.

  Remedy: Dealers will replace the fuel pump barrels, free of charge. Owner notification letters were mailed November 15, 2024. Owners may contact Kenworth's customer service at 1-425-828-5888 and Peterbilt's customer service at 1-940-591-4220. Owners may also contact Cummins Customer Service at 812-377-5000. PACCAR's numbers for this recall are 24KWH and 24PBH.

• STEERING:LINKAGES:TIE ROD ASSEMBLY#24V433000June 12, 2024

  PACCAR Incorporated (PACCAR) is recalling certain 2025 Kenworth K270, K370, L770, T280, T380, T480, T680, T880, W900, W990, 2025 Peterbilt 220, 520, 536, 537, 548, 567, 579, and 589 trucks. The tie rod or drag link assembly may contain an improperly heat-treated ball stud, causing the ball stud to break.

  Risk: A broken ball stud can cause a complete loss of steering control, increasing the risk of a crash.

  Remedy: Owners are advised not to drive their vehicles until the remedy has been completed. Dealers will inspect and replace the tie rod and drag link assemblies as necessary, free of charge. Owner notification letters were mailed August 6, 2024. Owners may contact Kenworth customer service at 1-425-828-5888 and Peterbilt customer service at 1-940-591-4220. PACCAR's numbers for this recall are 24KWG and 24PBG.

• STEERING:GEAR BOX:SHAFT SECTOR#24V233000March 27, 2024

  PACCAR Incorporated (PACCAR) is recalling certain 2025 Peterbilt 536, 548, 567, 579, and Kenworth T280, T380, T480, T680, T880, and W990 vehicles. The steering gear sector shaft may have been improperly heat-treated, which can cause the gear teeth to crack or fracture.

  Risk: Fractured steering gear teeth can cause a loss of steering control, increasing the risk of a crash.

  Remedy: Dealers will inspect the serial numbers, and replace the steering gears as necessary, free of charge. Owner notification letters were mailed August 7, 2024. Owners may contact Kenworth customer service at 1-425-828-5888 and Peterbilt customer service at 1-940-591-4220. PACCAR's numbers for this recall are 24PBF and 24KWF.

• STEERING#24V044000January 25, 2024

  PACCAR Incorporated (PACCAR) is recalling certain 2024-2025 Kenworth T280, T380, T480, T680, T880, L770, W990, and 2024-2025 Peterbilt 389, 520, 535, 536, 537, 548, 567, 579, 589 trucks. The steering gear assemblies may have been assembled incorrectly with fewer recirculating balls than are required, which may result in a loss of steering control.

  Risk: A loss of steering control increases the risk of a crash.

  Remedy: Dealers will inspect and replace the steering gears as necessary, free of charge. Owner notification letters were mailed March 20, 2024. Owners may contact Peterbilt customer service at 1-940-591-4220 and/or Kenworth customer service at 1-425-828-5888. PACCAR's numbers for this recall are 24PBC and 24KWC.