Peterbilt 579 recalls

• Electrical#2026367July 27, 2026

  178 units affected

  Issue: On certain trucks, the power distribution center (PDC) box may be contaminated by oil and could fail. If this happens, there could be a sudden loss of power to the wheels. This problem could also cause the antilock brake system, exterior lighting, windshield wipers and/or defrost system not to work. Safety Risk: A loss of power to the wheels and an antilock braking system that don't work could increase the risk of a crash. Exterior lights, windshield wipers and/or a defrost system that don't work could reduce visibility and also 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 PDC box.

• 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.

• 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.

• 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.

• 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.

• Brakes#2023007January 17, 2023

  11 units affected

  Issue: On certain electric trucks, a programming error could cause the electronic stability control program (ESP) to not work correctly. Safety Risk: A stability control system that does not work properly could 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 update the vehicle software.

• 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.

• Engine#2022470August 18, 2022

  186 units affected

  Issue: On certain trucks, a problem in the engine control module (ECM) could cause a short circuit. If this happens, the engine could stall and you may not be able to restart it. Safety Risk: A sudden loss of engine power could increase the risk of a crash. Corrective Actions: PACCAR will notify owners by mail and instruct you to take your truck to a Cummins authorized service center to replace the engine control module.

• 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.

• Steering#2022210April 25, 2022

  985 units affected

  Issue: On certain trucks, the fasteners that attach the steer arm to the steering knuckle may fail. If this happens, the steer arm could separate from the steering knuckle and cause a loss of steering control. Note: This recall only affects trucks equipped with a Dana D-series steer axle. Safety Risk: A loss of steering control could increase the risk of a crash. Corrective Actions: PACCAR will notify owners by mail. The corrective actions for this recall are under development.

• 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.

• Lights And Instruments#2020148April 7, 2020

  65,284 units affected

  Issue: On certain trucks, the warning light for the tractor anti-lock brake system (ABS) may not turn on if the system loses power. If this happens, the driver will not get warning that the ABS is not working properly. Note: This problem would also cause the traction control (TC) and electronic stability control (ESC) lights not to turn on. Safety Risk: If a driver is not warned that the ABS is not working properly, there could be an increased 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 software for the cab control module (CECU).

• Electrical#2020090March 5, 2020

  2,435 units affected

  Issue: On certain trucks, the battery cables to the jump-start terminal may be too long. As a result, the cables could contact and chafe against the left-front suspension leaf spring. If this happens, a short circuit could occur and cause the positive cable to overheat or melt. Note: This recall only affects trucks with a left-hand under-hood battery jumper terminal. Safety Risk: An overheated or melted battery cable could create the risk of a fire. Corrective Actions: The company will notify owners by mail and instruct you to take your truck to a dealer for an inspection of the jump-start terminal cables. If the cables are too long, they will be replaced.

• Other#2019518October 15, 2019

  47 units affected

  Issue: On certain trucks, the reflective conspicuity tape on the back wall of the sleeper box was installed in incorrect locations. Canadian regulations require the conspicuity tape to be placed in specific areas. Safety Risk: A truck that does not have properly placed conspicuity tape may be less visible to others. This could create an increased risk of a crash. Corrective Actions: The company will notify owners by mail and instruct them to take their vehicle to a Peterbilt dealer to install additional conspicuity tape on the back wall of the sleeper box, in the required locations.

• Visual System#2019207April 26, 2019

  431 units affected

  Issue: On certain trucks, the upper glass on the side mirrors may not be properly attached. This could cause the mirror glass to fall off or to hang from its wiring and block the lower convex mirror. Safety Risk: Missing or blocked mirrors will reduce visibility and increase the risk of a crash. If the mirror glass falls from the vehicle, it could strike another vehicle or pedestrian. Corrective Actions: The company will notify owners by mail and instruct them to take their truck to a dealer to inspect the build date of upper mirror glass assembly. The mirror glass will be replaced as necessary.

• Powertrain#2018739December 24, 2018

  2,634 units affected

  On certain vehicles equipped with an Eaton automated manual transmission and electronic clutch actuator (ECA), the clutch may have been manufactured improperly and could fail. If this occurs, the broken clutch components could prevent the transmission from disengaging or shifting to neutral. This could result in unintended vehicle movement, even if the parking brake is applied, increasing the risk of a crash causing injury and/or damage to property. Correction: Dealers will recalibrate the Transmission Control Module (TCM).

• Seats And Restraints#2018702December 13, 2018

  758 units affected

  On certain vehicles, the webbing on certain seat belt buckle assemblies may not have been securely fastened during assembly. As a result, in the event of a crash, the seat belt may fail to restrain the seat occupant, increasing the risk of injury. Correction: Dealers will remove and replace seat belt buckle assemblies as necessary.

• Fuel System#2018527September 25, 2018

  2,974 units affected

  On certain trucks built with a Cummins X15 or ISX15 engine equipped with nylon fuel lines and a banjo bolt on the fuel pump, a blockage in the fuel cooling system may cause a fuel line to burst. This could result in a significant fuel leak onto the roadway, which would create a road hazard for other motorists. Additionally, this condition could also cause an engine stall without warning, without the ability to restart the engine. Both of these conditions may increase the risk of a crash causing injury and/or damage to property. Correction: Cummins-authorized dealers will replace the affected nylon line with a steel line.

• Brakes#2018389July 24, 2018

  214 units affected

  Certain vehicles may fail to conform to the requirements of Canada Motor Vehicle Safety Standard (CMVSS) 121 - Air Brake Systems and CMVSS 136 - Electronic Stability Control Systems for Heavy Vehicles. In the event that the anti-lock brake system (ABS) loses battery and/or ignition power to the controller, the ABS indicator lamp may not illuminate to warn the driver of the loss of ABS, which is contrary to the requirements of the standards. This could result in the loss of ABS function with no warning to the driver, which could increase the risk of a crash causing injury and/or damage to property. Correction: Dealers will reprogram the cab control module.

• Lights And Instruments#2018077February 8, 2018

  174 units affected

  Certain vehicles equipped with Eaton Ultrashift Plus or Eaton Advantage automatic transmissions with right hand stalk shifters may not comply with the requirements of Canada Motor Vehicle Safety Standards (CMVSS) 101 - Location and Identification of Controls and Displays and CMVSS 102 – Transmission Control Functions. Under certain conditions, the D-R-N (Drive-Reverse-Neutral) display in the instrument cluster may incorrectly illuminate the "N" on the display when the transmission shifter is in the "D" or "R" position, which is contrary to the requirements of the standards. This could create confusion to the operator, which could increase the risk of injury and/or property damage. Correction: Dealers will update the transmission software.

• Powertrain#2017664December 28, 2017

  32 units affected

  Certain vehicles may not comply with the requirements of Canada Motor Vehicle Safety Standard (CMVSS) 102 – Transmission Control Functions. The transmission control module may allow engine cranking for around 1 second after the vehicle is powered on with the shift stalk out of neutral, contrary to the requirements of the standard. If this occurs, this could cause unintentional vehicle movement, increasing the risk of a crash causing injury and/or damage to property. Correction: Dealers will update the Transmission Control Module.

• Steering#2017461September 25, 2017

  281 units affected

  On certain vehicles, the castellated nut and cotter pin on the steer axle may not have been tightened to specification. This could cause the tie rod to become loose in the steer axle, which would result in audible noise and/or looseness in steering. If the vehicle were continued to be operated in this condition, the tie rod could disconnect from the knuckle, resulting in a complete loss of control of a vehicle wheel, which would increase the risk of a crash causing injury and/or damage to property. Correction: Dealers will inspect the torque of the castellated nuts on the tie rod, and replace the tie rod stud and knuckle as necessary.

• Electrical#2017374July 27, 2017

  240 units affected

  On certain vehicles, the polyfuse for the spotlight could develop a short circuit in the cabin fuse box. A short circuit could result in overheating and melting of the fuse box, and could increase the risk of a fire causing injury and/or damage to property. Correction: Dealers will replace the optional polyfuse switch in the spotlight circuit with a standard fuse.

• Fuel System#2017361July 20, 2017

  533 units affected

  On certain vehicles equipped with Cummins ISX 15 engines and certain fuel pumps, the drive gear on the fuel pump may spin loose on the drive shaft. This could result in a loss of pumping function, which could result in an engine stall without warning and not being able to be restarted, which could increase the risk of a crash causing injury and/or damage to property. Correction: Cummins-authorized dealers will replace the fuel pump.

• Fuel System#2017093February 20, 2017

  23 units affected

  On certain vehicles equipped with 2017 emissions engines, a tee fitting in the fuel supply was improperly manufactured and could leak fuel. Leaking fuel, in the presence of an ignition source, could result in a fire causing injury and/or damage to property. Correction: Dealers will inspect and replace affected fittings as necessary.

• Engine#2016289June 8, 2016

  178 units affected

  On certain vehicles, the Engine Control Module (ECM) may develop an internal electrical short circuit that could blow a fuse in the ECM's electrical supply circuit. This could cause the engine to stall without warning and prevent the vehicle from being restarted. Engine stalling without warning would result in lost propulsion which, in conjunction with traffic and road conditions, and the driver's reactions, could increase the risk of a crash causing property damage and/or personal injury. Correction: Dealers will replace the ECM.

• Engine#2015418September 23, 2015

  9 units affected

  On certain vehicles equipped with a Cummins engine, the Engine Control Module (ECM) could develop an internal electrical short circuit that could blow a fuse in the ECM’s electrical supply circuit. This could result in an unexpected engine stall without the ability to restart the engine, which could increase the risk of a crash. Correction: Dealers will replacing the existing, affected ECM with a new ECM.

• Electrical#2015317July 20, 2015

  86 units affected

  On certain vehicles equipped with PACCAR MX-13 engines and Leece Neville alternators, the alternator charge cable may chafe against an air conditioning discharge line. This chafing could lead to damage of the alternator cable's insulation and could lead to an electrical short, increasing the risk of fire, which could result in injury and/or damage to property. Correction: Dealers will rotate the alternator cable end 180 degrees to provide necessary clearance and reattach the cable to the alternator.

• Electrical#2015189May 8, 2015

  140 units affected

  On certain vehicles equipped with PACCAR MX-13 engines and Delco-Remy 40SI alternators, the alternator charge cable may chafe against an air conditioning discharge line. This chafing could lead to damage of the alternator cable's insulation and could lead to an electrical short, increasing the risk of fire, which could result in injury and/or damage to property. Correction: Dealers will rotate the alternator cable end 180 degrees to provide necessary clearance and reattach the cable to the alternator.

• Label#2015095March 5, 2015

  30,064 units affected

  Certain vehicles fail to comply with the requirements of Canada Motor Vehicle Safety Standard 120 - Tire Selection and Rims. The tire information label may indicate incorrect tire pressure, understated by 5 PSI, or a tire/rim/inflation pressure combination for which the maximum GAWR is slightly below the GAWR of the vehicle. Underinflated tires may not be capable of supporting the maximum load as reflected by the GAWR and GVWR specified on the certification label, which could cause tire failure resulting in injury and/or damage to property. Correction: Manufacturer will mail new tire and rims certification label.

• Brakes#2014590December 23, 2014

  218 units affected

  On certain vehicles, brake chamber diaphragm(s) may not be properly seated. This could lead to brake drag, causing brake overheating or unintended spring brake application. These issues could increase the risk of a crash causing injury and/or property damage. Correction: Dealers will replace the brake chambers.

• Airbag#2014198May 29, 2014

  4 units affected

  On certain vehicles, a wiring defect could cause the airbag warning lamp to fail to illuminate in the event of a fault with the side curtain airbag system. As a result, a fault could go undetected by the driver, and cause the side airbag to fail to deploy in a crash. This could increase the risk of injury. Correction: Dealers will affect repairs.

• Lights And Instruments#2014061March 4, 2014

  1 units affected

  Certain vehicles may not comply with the requirements of Canada Motor Vehicle Safety Standard 101 - Controls and Displays. The automatic transmission control position is not illuminated and may not be visible to the operator. This could result in unintended vehicle movement, increasing the risk of injury and/or damage to property. Correction: Dealers will affect repairs.

• Other#2014018January 22, 2014

  1,025 units affected

  On certain vehicles, the driver and passenger door latches may fail and remain either permanently locked or unlocked. If this were to occur, the driver and/or passenger(s) may not be able to quickly exit the vehicle in an emergency, which could increase the risk of injury. Correction: Dealers will replace affected door latches.

• Electrical#2013178May 24, 2013

  255 units affected

  On certain trucks, an internal defect in the ignition switch can cause the starter to engage when the key is partially inserted. This would allow the engine to start unexpectedly, which could injure someone working in the engine compartment. Also, manual transmission vehicles without the neutral start option may move unexpectedly if the transmission is in gear at the time the key is inserted. This could result in a crash causing property damage and/or personal injury. Correction: Dealers will inspect and, if necessary, replace the ignition switch assembly.

• Seats And Restraints#2013077March 12, 2013

  322 units affected

  On certain trucks, the cables which anchor the seatbelt buckle assemblies could fail. Failure of the seatbelt to restrain the seat occupant would increase the risk of personal injury during a crash. Correction: Dealers will replace the driver and passenger seatbelt buckle assemblies.

• Lights And Instruments#2013057February 19, 2013

  270 units affected

  On certain vehicles equipped with an exterior lights test switch, pressing the switch while the vehicle is in motion will cause all exterior lighting to be turned off. An unexpected loss of lighting during vehicle operation could increase the risk of a crash causing property damage and/or personal injury. Correction: Dealers will reprogram the vehicle to disable the exterior lights test switch.

• Suspension#2013034January 31, 2013

  24 units affected

  On certain trucks equipped with an air suspension dump valve option, a software error could cause the rear suspension to reinflate without warning when the operator turns the key to the "off" position. The unexpected re-inflation of the suspension could result in physical injury to a person near the rear suspension. Correction: Dealers will reprogram vehicles with updated software.

Canadian data updated August 24, 2026