2022 Peterbilt 579

Defect. 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.

Defect. 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.

Defect. 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.

Defect. 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.

Defect. 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.

Defect. 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.

Defect. 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.

Defect. 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.

Defect. 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.

Defect. 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.

The contact owns a 2022 Peterbilt 579. The vehicle was previously repaired under NHTSA Campaign Number: 24V915000 (SERVICE BRAKES, HYDRAULIC, ELECTRICAL SYSTEM); however, the vehicle experienced the failure listed in the recall after the recall repair. The contact stated that while driving 22 MPH, the brakes failed to activate. There was no warning light illuminated. The vehicle was taken to a dealer to be diagnosed, and the contact was informed that the failure with the brakes was caused by a loss of communication between the ECM and the ECU. The contact was informed that the ECU was not installed on the vehicle, and the lane mitigation system was found unplugged. The vehicle was not repaired. The manufacturer was notified of the failure; however, the manufacturer refused to help due to how the vehicle was manufactured. The contact stated that the vehicle was manufactured improperly with salvaged parts and stated that the serial number for the engine was not a match for the original engine. The failure mileage was 526,000.

After a decel to 20ish mph, the automated manual transmission attempted to shift into gear to begin acceleration. The transmission made load noises indicating a failure followed by a transmission warning with the fault code being 617 FMI 14. All acceleration and engine braking ability was disabled, increasing the risk of an accident due to the vehicle being disabled. A similar safety recall for the same vehicle would be NHTSA #24V-190 which causes the vehicle to become disabled and increase a crash risk. This is a known issue caused by compressed air contamination according to Eaton Transmissions service bulletin TAIB-1006, which was first published April 2023. In the over 3 years since the service bulletin was released, Eaton, Peterbilt, Paccar, and Cummins(engine manufacturers) have failed to develop adjusted maintenance intervals, added inspections, or additional filtration to prevent contamination of the transmissions air system. They've instead passed the financial burden of repair on the customers by denying warranties. The dealer determined based on TAIB-1006 that the MTM requires replacement and the air system cleaned of contamination. This was based on data and not a detailed inspection to determine the internal failure.

The contact owns a 2022 Peterbilt Conventional 579. The contact stated while driving at an undisclosed speed, the transmission independently shifted to neutral. The vehicle was driven to the shoulder of the road. The vehicle was turned off and restarted, and the vehicle was independently reset. The vehicle was taken to the dealer; however, the contact was informed that a software update was ordered by the manufacturer. The software update was performed; however, the failure reoccurred. The contact was informed that there was no fix for the failure because the dealer was unable to determine the cause of the failure. The manufacturer was made aware of the failure and the dealer was instructed to perform the software update again. The failure mileage was approximately 540,000.

See attached document for complaint.

The contact owns a 2022 Peterbilt 579. The contact stated that while driving at an undisclosed speed, the vehicle downshifted with multiple warning lights illuminated. The vehicle was restarted; however, the failure recurred. The contact received notification of NHTSA Campaign Number: 24V190000 (Power Train); however, the part to do the recall repair was unavailable. The dealer was contacted. The vehicle was taken to the dealer where it was diagnosed and determined that the gear shifter assembly had failed and needed to be replaced. The vehicle was not repaired. The contact was informed by the dealer that the parts were not available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the failure. The approximate failure mileage was 220,536. VIN tool confirms parts not available.

Drive line installed incorrectly. Fell out while driver was on the highway.

I WOULD LIKE TO TALK TO YOU ABOUT MY TRUCK ISSUE . I BOUGHT THE TRUCK PETERBILT 579 2022 FROM GOLDEN STATE PETERBILT FRESNO CA ON 03/03/2021. WHEN I DROVE THE TRUCK I REALIZED IT WAS PULLING TO THE RIGHT. I IMMEDIATELY INFORMED THE DEALERSHIP ABOUT THIS ISSUE. I DROVE THE TRUCK ABOUT 200 MILES TO MAKE SURE THERE WAS SOMETHING WRONG WITH THE TRUCK, SO I LEFT THE TRUCK AT THE DEALERSHIP ON 03/04/21 TO FIX IT. THE COMPANY HAS CLAIMED TO HAVE REPAIRED THE TRUCK THREE TIMES SINCE THEN BUT THE TRUCK HAS NOT BEEN REPAIRED. THE TRUCK STILL PULLS TO THE RIGHT AND IS NOT SAFE TO DRIVE ON THE ROAD .AFTER ABOUT 21 DAYS, THE COMPANY HAS NOT BEEN ABLE TO FIX THE TRUCK OR FIND A SOLUTION TO THE PROBLEM. THIS BEHAVIOR OF THE COMPANY IS CAUSING ME HUGE LOSSES IN MY BUSINESS.MY BROTHER DROVE ANOTHER DEALERSHIP ANOTHER BRAND NEW TRUCK WHICH IS PULL RIGHT SIDE AS WELL BUT NOT LIKE MY TRUCK . FOREMAN TOLD ME THIS PROBLEMS COMING IN TOO MANY TRUCKS. CAN YOU TAKE ACTION AGAINST MANUFACTURING COMPANY BECAUSE THEY ARE MAKING TRUCK WITCH'S NOT GOOD FOR ROAD SAFETY ? THANK YOU VERY MUCH