2022 Peterbilt 579 recalls

• 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.

• Powertrain#2024161March 8, 2024

  5,051 units affected

  Issue: On certain trucks, the wiring in the right-hand shift stalk may not be properly connected. As a result, you may not be able to shift the transmission back into gear after coming to a stop. 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 inspect and, if necessary, replace the right-hand shift stalk assembly.

• Fuel System#2023530September 27, 2023

  11 units affected

  Issue: On certain trucks that have the air tank mounted behind the fuel tank, the U-bolts that attach the air tank to the side of the frame may be too long. As a result, a bolt could damage the fuel tank and create a fuel leak. Safety Risk: A fuel leak can create the risk of a fire. Corrective Actions: PACCAR will notify owners by mail and advise you to take your truck to a dealership to inspect the clearance of the U-bolts that attach the air tank to the side of the frame. If the bolts are too long, the dealer will cut off the excess length. If the fuel tank has damage from contacting a bolt, it will be replaced.

• Electrical#2023343June 13, 2023

  512 units affected

  Issue: On certain trucks, the alternator positive cable could be damaged by contact with a fastener for the left-front spring bracket. If this happens, the cable could create a short circuit. Note: This recall only affects trucks equipped with an MX-13 engine and a 160-A alternator. Safety Risk: A short circuit can create the risk of a fire. Corrective Actions: PACCAR will notify owners by mail and instruct you to bring your truck to a dealership to replace and relocate a fastener for the left-front spring bracket, and ensure the alternator cable is secured properly.

• Visual System#2022729December 19, 2022

  430 units affected

  Issue: On certain trucks, the pivot joint for the molded hood mirrors may fail. If this happens, the upper half of a mirror could detach and fall from the truck, if it was not built with a wire harness or tether. Safety Risk: A mirror that falls from the truck could create a road hazard for others and increase 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 hood mirrors, and replace them if there is no wire harness or tether.

• Lights And Instruments#2022591October 17, 2022

  7,491 units affected

  Issue: On certain trucks, a software problem could cause the instrument cluster display to freeze while driving. As a result, you may not be able to see certain information about the vehicle, including the speedometer, warnings, and malfunction tell-tale graphics. Safety Risk: Warnings and malfunction tell-tale information that does not display could increase the risk of a crash. Corrective Actions: Paccar will notify owners by mail and instruct you to take your vehicle to a dealership to update the system software.

• Steering#2022410July 28, 2022

  3,041 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 vehicle to a dealership to inspect the serial number on the steering gear, and replace it, if necessary.

• Structure#2022010January 18, 2022

  192 units affected

  Issue: On certain trucks, the latches that hold the chassis fairing step assembly could loosen. If this happens, the steps could move unexpectedly. Safety Risk: Steps that move when you get in or out of the cab could create a risk of injury. Corrective Actions: PACCAR will notify owners by mail and instruct you to take your truck to a dealer to replace the bolts for the latch on the chassis fairing step assembly. The dealer will also add a bracket to strengthen the latch attachment area.

• Brakes#2021521August 20, 2021

  38 units affected

  Issue: On certain trucks, the Hill Start Assist valve assembly could be damaged by contact with the rear axle. If this happens, there could be reduced braking or a loss of rear brakes. Safety Risk: Reduced braking or a loss of rear brakes can cause extended stopping distances and increase the risk of a crash. Corrective Actions: PACCAR will notify owners by mail and instruct you to take your truck to a dealer to inspect the clearance between the Hill Start Assist valve assembly and the rear axle. The dealer will rework the assembly if more clearance is needed.

• Lights And Instruments#2021287May 14, 2021

  9,308 units affected

  Issue: On certain trucks, the driver may be able to turn off the daytime running lamps (DRLs) while driving. Canadian regulations require that DRLs must stay on while driving, unless the headlamps or fog lamps are switched on. Safety Risk: Driving without daytime running lights could make the vehicle less visible to others and increase the risk of a crash. Corrective Actions: PACCAR will notify owners by mail and instruct you to take your truck to a dealer to update the vehicle software.

• Powertrain#2021069February 17, 2021

  47 units affected

  Issue: On certain vehicles, the cap screws that attach the flywheel to the crankshaft may not have been properly tightened. As a result, the flywheel could detach. If this happens, there could be a loss of power to the wheels and parts could be ejected from the engine compartment. Safety Risk: A loss of power to the wheels could increase the risk of a crash. Parts that are ejected from the engine compartment could create a risk of injury. Corrective Actions: Cummins will notify owners by mail and instruct you to take your truck to a Cummins authorized service center to tighten the flywheel cap screws. Cummins will repair damaged components, as necessary.

Canadian data updated August 24, 2026

• 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.

• POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT#24V190000March 20, 2024

  PACCAR Incorporated (PACCAR) is recalling certain 2021-2024 Peterbilt 365, 367, 389, 535, 536, 537, 548, 567, 579, and 2021-2025 Kenworth T180, T280, T380, T480, T680, T880 and W990 trucks. The right-hand gear shifter stalk connectors may have been improperly crimped, resulting in a loss of communication.

  Risk: A loss of communication between the gear shifter and the transmission may result in the vehicle becoming disabled after coming to a stop, increasing the risk of a crash.

  Remedy: Dealers will inspect and replace the gear shifter assembly as necessary, free of charge. Owner letters were mailed December 15, 2025, then phased after that. Owners may contact Kenworth customer service at 1-425-828-5888 or Peterbilt customer service at 1-940-591-4220. PACCAR's numbers for this recall are 24PBE and 24KWE.

• FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY#23V653000September 27, 2023

  PACCAR Incorporated (PACCAR) is recalling certain 2021-2024 Peterbilt 579 and 567 trucks. The U-bolts that attach the air tank to the chassis may contact the fuel tank and over time, wear a hole in the tank.

  Risk: A punctured fuel tank can leak fuel, increasing the risk of a fire.

  Remedy: Dealers will inspect and trim the U-bolts, and replace the fuel tank as necessary, free of charge. Owner notification letters were mailed November 3, 2023. Owners may contact Peterbilt's customer service at 1-940-591-4220. PACCAR's number for this recall is 23PBH.

• ELECTRICAL SYSTEM#23V423000June 13, 2023

  PACCAR, Incorporated (PACCAR) is recalling certain 2021-2023 Peterbilt 579 vehicles equipped with MX-13 engines and 160-amp alternators. A fastener on the front spring bracket may have been installed with the head on the outside of the frame rail, which can chafe and damage the alternator positive cable.

  Risk: A damaged alternator cable increases the risk of a fire.

  Remedy: Dealers will replace the frame fastener and secure the alternator cable, free of charge. Owner notification letters are expected to be mailed August 11, 2023. Owners may contact Peterbilt's customer service at 1-940-591-4220. PACCAR's number for this recall is 23PBD.

• ELECTRONIC STABILITY CONTROL (ESC)#23V007000January 16, 2023

  PACCAR Incorporated (PACCAR) is recalling certain 2022-2023 Peterbilt 579 and 2023 Kenworth T680 vehicles. Incorrect software in the battery electric heavy duty electronic stability control program may underestimate the mass of the vehicle. As such, these vehicles may fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 136, "Electronic Stability Control Systems on Heavy Vehicles."

  Risk: An incorrect estimate of the vehicle mass can reduce the performance of the stability control system and increase the risk of a crash.

  Remedy: Dealers will update the software, free of charge. Owner notification letters are expected to be mailed March 17, 2023. Owners may contact PACCAR's customer service at 1-425-828-5888 (Kenworth) and 1-940-591-4220 (Peterbilt). PACCAR's numbers for this recall are 23PBA and 23KWA.

• VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR#22V940000December 16, 2022

  PACCAR Incorporated (PACCAR) is recalling certain 2022-2023 Peterbilt 579 vehicles. The molded hood mirror assemblies may break at the pivot joint and, if unsecured by a harness or tether, can fall into the roadway.

  Risk: A molded hood mirror that falls into the roadway can become a road hazard, increasing the risk of a crash.

  Remedy: Dealers will inspect for a wire harness or tether and replace the hood mirror assembly as necessary, free of charge. Owner notification letters are expected to be mailed February 14, 2023. Owners may contact Peterbilt's customer service at 1-940-591-4220. PACCAR's number for this recall is 22PBF.

• ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL#22V779000October 17, 2022

  PACCAR Incorporated (PACCAR) is recalling certain 2022-2023 Kenworth T680, T880, W990, and Peterbilt 365, 367, 389, 567, and 579 vehicles. The digital display may freeze and not display critical safety information. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard numbers 101, "Control and Displays" and 102, "Trans Shift Lever Seq/Starter Interlock/Trans Braking Effect."

  Risk: The loss of display information, such as vehicle speed and warning lights, can increase the risk of a crash.

  Remedy: Dealers will update the software, free of charge. Owner notification letters are expected to be mailed December 16, 2022. 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 22KWK and 22PBK.

• STEERING#22V547000July 28, 2022

  PACCAR Incorporated (PACCAR) is recalling certain 2022-2023 Kenworth T170, T270, T280, T370, T380, T440, T470, T480, T680, T800, T880, W900, W990, C500, and 2022-2023 Peterbilt 325, 330, 337, 348, 365, 367, 389, 520, 536, 537, 548, 567, and 579 vehicles. The steering gears may have been assembled incorrectly, which can cause the gears to fracture.

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

  Remedy: Dealers will inspect the steering gear serial numbers, and replace the steering gears as necessary, free of charge. Owner notification letters were mailed September 26, 2022. 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 22PBE and 22KWE.

• STRUCTURE:BODY:STEP/LADDER#22V016000January 18, 2022

  PACCAR Incorporated (PACCAR) is recalling certain 2022 Peterbilt 579 vehicles equipped with chassis fairings. The bolts that hold the chassis fairing step assembly in the closed position may loosen and fracture the latch attachment, causing the fairing assembly to flex.

  Risk: A partially unsecured cab step can unexpectedly move while entering or exiting the cab, increasing the risk of injury.

  Remedy: Dealers will add new fasteners and a bracket, free of charge. Owner notification letters were mailed on April 11, 2022. Owners may contact Peterbilt customer service at 1-940-591-4220. PACCAR's number for this recall is 22PBA.

• ELECTRICAL SYSTEM:WIRING#21V00N000December 29, 2021

  PACCAR Incorporated (PACCAR) is recalling certain 2016-2022 Peterbilt 567, 579, 2021-2022 Peterbilt 536, 2017-2021 Kenworth T880, 2016-2022 Kenworth T680, 2018-2020 Kenworth T440, 2020 Kenworth T270, and 2021 Kenworth T280 vehicles. The methane detection system will not function if the system loses power.

  Risk: The operator may be unaware of a system malfunction or the presence of excessive methane levels, increasing the risk of injury or fire.

  Remedy: Dealers will re-wire the warning alarm, free of charge. Owner notification letters were mailed December 1, 2022. Owners may contact Peterbilt customer service at 1-940-591-4220, and Kenworth customer service at 1-425-828-5888. PACCAR's numbers for this recall are 21KWH and 21PBN.

• SERVICE BRAKES, AIR#21V906000November 19, 2021

  PACCAR Incorporated (PACCAR) is recalling certain 2019-2022 Kenworth T880, W990, Peterbilt 567, 579, 389, and 2022 Peterbilt 536, 537 wrecker and auto hauler vehicles. The work brake (winch brake) may unintentionally disengage the service brakes during winching operations, causing the vehicle to roll.

  Risk: Unintended vehicle movement can increase the risk of a crash or injury.

  Remedy: Dealers will update the vehicle software, free of charge. Owner notification letters were mailed on January 3, 2022. Owners may contact PACCAR customer service at 1-425-828-5888 (Kenworth); or 1-940-591-4220 (Peterbilt). PACCAR's numbers for this recall are 21KWG and 21PBM.

• ELECTRONIC STABILITY CONTROL (ESC):CONTROL MODULE:SOFTWARE#21V719000September 16, 2021

  PACCAR Incorporated (PACCAR) is recalling certain 2022 Peterbilt 567 and 579 vehicles. The Electronic Stability Control (ESC) malfunction indicator lamp may not illuminate. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 136, "Electronic Stability Control Systems on Heavy Vehicles."

  Risk: The driver may be unaware of an ESC system malfunction, increasing the risk of a crash.

  Remedy: Dealers will reprogram the ESC system, free of charge. Owner notification letters were mailed on October 28, 2021. Owners may contact PACCAR's customer service at 1-940-591-4220 (Peterbilt). PACCAR's number for this recall is 21PBL.

• SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS#21V648000August 19, 2021

  PACCAR, Inc. (PACCAR) is recalling certain 2021-2022 Peterbilt 367, 389, 567, and 579 vehicles. The cross member mounted Hill Start Assist valve assembly may have insufficient clearance to the rear axle, causing damage to the rear brake hose and loss of the rear brake signal.

  Risk: If loss of the rear brake signal occurs, the vehicle could experience reduced rear braking capability or loss of brakes to the rear axle(s), increasing the risk of a crash.

  Remedy: Dealers will inspect for clearance and re-work the assembly to conform with an updated design, free of charge. Interim owner notification letters were mailed on September 24, 2021. Owner notification letters were mailed on March 11, 2022. Owners may contact PACCAR's customer service at 1-940-591-4220 (Peterbilt). PACCAR's number for this recall is 21PBJ.

• ENGINE#21V080000February 17, 2021

  PACCAR Incorporated (PACCAR) is recalling certain 2021-2022 Kenworth T680, T880, W990, T800, W900 and Peterbilt 579, 567, 389, 367 vehicles equipped with a Cummins X15 engine. The capscrews that attach the flywheel to the crankshaft may have been improperly torqued, allowing the flywheel to detach.

  Risk: A detached flywheel can cause loss of drive power, increasing the risk of a crash. Additionally, driveline pieces may be ejected from the engine compartment, increasing the risk of injury.

  Remedy: PACCAR will notify owners, and dealers will properly torque the capscrews and the engine will also be inspected for damage and, if necessary, repaired, free of charge. The recall began on March 29, 2021. Owners may contact PACCAR customer service at 1-425-828-5888 (Kenworth) or 1-940-591-4220 (Peterbilt). PACCAR's numbers for this recall are 21KWA and 21PBB.