Kenworth W990 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.

• Visual System#2025448September 2, 2025

  1,314 units affected

  Issue: On certain trucks, a software problem could cause the instrument panel cluster not to display while driving. As a result, you may not be able to see certain information about the truck, including the speedometer, fuel gauge, warning lights and malfunction tell-tales. Safety Risk: Warnings, tell-tales and gauges that don't display 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 instrument panel cluster software.

• 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.

• 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.

• Steering#2024732December 3, 2024

  14 units affected

  Issue: On certain trucks, the bolts for the steering arm and/or tie rods may not have been tightened properly. As a result, the bolts could loosen and separate. If this happens, there could be a loss of steering control. Note: This recall only affects certain trucks equipped with 20k steer axles. Safety Risk: A loss of steering control could create the risk of a crash. Corrective Actions: PACCAR will notify owners by mail and advise you to take your truck to a dealership to replace the affected bolts and tighten them properly.

• 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.

• 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.

• Steering#2022592October 19, 2022

  98 units affected

  Issue: On certain trucks, the tie rod end clamps could crack and loosen. If this happens, the threads on the tie rod end could become damaged and the tie rod end could separate. This could cause a loss of steering control. 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 replace both tie rod end clamps.

• 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.

• Lights And Instruments#2022185April 14, 2022

  846 units affected

  Issue: On certain trucks, the daytime running lamps (DRLs) may not turn on when the vehicle starts moving. Canadian regulations require that DRLs must be on while driving, unless the headlamps or fog lamps are switched on. Note: This recall only affects trucks that were repaired under recall 21KWD (Transport Canada recall 2021-287). 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 dealership to update the vehicle software.

• Brakes#2021713November 19, 2021

  13 units affected

  Issue: On certain trucks, the work brake (also known as a winch brake) may suddenly release while using the winch. If this happens, the truck could move suddenly. Safety Risk: Sudden and unexpected movement of the truck could create a risk of injury or a crash. Corrective Action: The company will notify owners by mail and instruct you to take your truck to a dealer to update the vehicle software.

• Heater And Defroster#2021686November 9, 2021

  582 units affected

  Issue: On certain vehicles, there could be a problem with the ventilation control system (HVAC). As a result, certain controls may not work, including the windshield defrost function. Note: This recall replaces Transport Canada recall 2021-444. Safety Risk: A windshield that cannot be defrosted/defogged can reduce visibility and could increase the risk of a crash. Corrective Actions: PACCAR will notify owners by mail and instruct you to take your vehicle to a dealer to inspect the date code of the HVAC control head and replace it, if necessary.

• Heater And Defroster#2021444July 20, 2021

  156 units affected

  This recall was replaced by Transport Canada Recall No. 2021-686. Issue: On certain vehicles, there could be a problem with the ventilation control system (HVAC). As a result, certain controls may not work, including the windshield defrost function. Safety Risk: A windshield that cannot be defrosted/defogged can reduce visibility and could increase the risk of a crash. Corrective Actions: PACCAR will notify owners by mail and instruct you to take your vehicle to a dealer to replace the HVAC control head.

• 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.

• Suspension#2020399August 27, 2020

  502 units affected

  Issue: On certain trucks, the lift axle pivot bolts may be too short and may not be properly tightened. As a result, the bolts could come loose or break. If this happens, parts could fall from the truck. Note: This recall only affects trucks built with Watson Chalin SL2065 lift axles. Safety Risk: Large fasteners that fall on the road 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 dealer to inspect and replace the lift axle pivot bolts, as necessary.

• 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.

Canadian data updated August 24, 2026