Western Star 4700 recalls

• Steering#2023206April 5, 2023

  49 units affected

  Issue: On certain trucks, the cotter pin may be missing from the tie rod castle nut on the front steer axle. As a result, the nut could loosen. If this happens, the tie rod could detach from the steering arm and cause a loss of steering control. Safety Risk: A loss of steering control could create the risk of a crash. Corrective Actions: Daimler Truck North America (DTNA) will notify owners by mail. The corrective actions for this recall are under development.

• Lights And Instruments#2023060February 14, 2023

  396 units affected

  Issue: On certain trucks, the tail lamps do not turn on when the daytime running lamps (DRLs) are on. Canadian regulations require that, if a vehicle has dash backlighting, the low beam headlamps and tail lamps must automatically switch on when it is dark or the tail lamps must stay on at all times. Safety Risk: Driving without tail lamps in low light conditions could make the truck less visible and increase the risk of a crash. Corrective Actions: Daimler Truck North America (DTNA) will notify owners by mail and instruct you to take your truck to a DTNA authorized service facility to update the parameters for the lighting system. For Western Star 4700 ZODIAC models, the service facility will replace or modify the wiring harness.

• Tires#2022715December 12, 2022

  16 units affected

  Issue: Certain trucks were built with tires that are not approved for use with the truck's wheels. As a result, the tires may not perform properly, or a tire could fail. Safety Risk: A tire failure could cause a loss of control and increase the risk of a crash. Corrective Actions: Daimler Truck North America (DTNA) will notify owners by mail and instruct you to take your truck to a DTNA authorized service facility to replace the affected tires.

• Steering#2022546September 28, 2022

  77 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: Daimler Truck North America (DTNA) will notify owners by mail and instruct you to take your truck to a DTNA authorized service facility to replace both tie rod end clamps.

• Engine#2022413July 29, 2022

  99 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: Cummins will notify owners by mail and instruct you to take your truck to a Cummins authorized service center to replace the engine control module.

• Fuel System#2021756December 13, 2021

  389 units affected

  Issue: On certain trucks, the fuel tubes between the fuel rail and the injectors may crack and create a fuel leak. Note: This recall only affects trucks equipped with a Cummins X12 diesel engines. Safety Risk: A fuel leak can create the risk of a fire. Corrective Actions: Cummins will notify owners by mail and instruct you to take your truck to a Cummins authorized service center to replace the fuel tubes for cylinders 4, 5 and 6 and install vibration isolators.

• Tires#2021706November 17, 2021

  948 units affected

  Issue: Certain trucks were built with tires that are not approved for use with the truck's wheels. As a result, the tires may not perform properly, or a tire could fail. Safety Risk: A tire failure could cause a loss of control and increase the risk of a crash. Corrective Actions: Daimler Trucks North America (DTNA) will notify owners by mail. The corrective actions for this recall are under development. You will be instructed to bring your truck to a DTNA authorized service facility when a repair is available.

• Electrical#2021697November 12, 2021

  3,071 units affected

  Issue: On certain trucks, the pass-through power stud (an electrical connection located on the bulkhead) may come into contact with the bulkhead. If this happens, there could be electrical arcing (sparks). Note: This recall replaces FL-766 (Transport Canada Recall 2018-190). If your truck was inspected as a part of that recall, but the pass-through power stud was not replaced, your truck requires this repair. Safety Risk: Electrical arcing could create the risk of a fire. Corrective Actions: Daimler Trucks North America (DTNA) will notify owners by mail and instruct you to take your truck to a DTNA authorized service facility to replace the pass-through power stud.

• Lights And Instruments#2021695November 12, 2021

  170 units affected

  Issue: On certain trucks, the tail lamps on the trailer do not turn on when the daytime running lamps (DRLs) are on. New Canadian regulations require that, if a vehicle has dash backlighting, the low beam headlamps and tail lamps must automatically switch on when it is dark or the tail lamps must stay on at all times. Safety Risk: Driving without tail lamps in low light conditions could make the truck less visible and increase the risk of a crash. Corrective Actions: Daimler Trucks North America (DTNA) will notify owners by mail and instruct you to take your truck to a DTNA authorized service facility to install a jumper harness.

• Steering#2021304May 19, 2021

  712 units affected

  Issue: On certain vehicles, the tie rod clamp may not have been properly tightened. As a result, the tie rod end could loosen and separate. If this happens, there could be a loss of steering control. Safety Risk: A loss of steering control could create the risk of a crash. Corrective Actions: Daimler Trucks North America (DTNA) will notify owners by mail and instruct you to take your vehicle to a DTNA authorized service facility to replace the tie rod clamp nuts and bolts.

• Fuel System#2021271May 7, 2021

  731 units affected

  Issue: On certain vehicles, the fuel rail assembly could develop a leak. Note: This recall only affects vehicles equipped with a Cummins L9 or ISX12 diesel engine. Safety Risk: A fuel leak can create the risk of a fire. Corrective Actions: Cummins will notify owners by mail and instruct you to take your vehicle to a Cummins authorized service center to inspect the fuel rail. If damage is found, the fuel rail and fuel lines will be replaced. If no damage is found, the fuel rail will be reassembled with new crush washers using a special tool.

• Steering#2021219April 12, 2021

  658 units affected

  Issue: On certain trucks, the tie rod arm and steering arm bolts may be defective and could break. If this happens, there could be a loss of steering control. Note: This recall only affects trucks built with a Detroit front axle. Safety Risk: A loss of steering control could create the risk of a crash. Corrective Actions: Daimler Trucks North America (DTNA) will notify owners by mail and instruct you to take your truck to a DTNA authorized service facility to replace the tie rod arm bolts and the steering arm bolts.

• Electrical#2021172March 24, 2021

  1,677 units affected

  Issue: On certain trucks, an undersized wire in the ground circuit harness could overheat and melt a connector. If this happens, the engine may stall and you may not be able to restart it. Safety Risk: A loss of engine power could increase the risk of a crash. Corrective Actions: Daimler Trucks North America (DTNA) will notify owners by mail and instruct you to take your truck to an authorized DTNA Service Facility to replace the ground wire harness.

• Brakes#2021013January 20, 2021

  8 units affected

  Issue: On a small number of trucks equipped with air disc brakes and a certain steering arm configuration, a single brake caliper mounting bolt on the left side of the steering axle may not be properly tightened. Safety Risk: Reduced braking could cause an increase in stopping distance and create the risk of a crash. Corrective Actions: Daimler Trucks North America (DTNA) will notify owners by mail and instruct you to take your truck to a DTNA authorized service facility to inspect and replace the brake caliper bolts, as necessary.

• Structure#2020551November 12, 2020

  91 units affected

  Issue: On certain trucks, the welds that attach the trailer hitch may crack due to improper welding. As a result, the hitch could detach from the truck while towing a trailer. Note: This recall only affects certain trucks with trailer hitches installed by Commercial Truck Equipment. Safety Risk: A trailer that detaches from a truck could create a risk of a crash. Corrective Actions: Commercial Truck Equipment will notify owners by mail and instruct you to take your truck to a dealer to inspect the trailer hitch and repair or replace it, as necessary. You should stop using the trailer hitch until the inspection and repair have been completed.

• Wheels#2020513October 27, 2020

  215 units affected

  Issue: On certain trucks, the spindle nut snap ring on the left side of the steer axle may not be installed correctly or may be missing. As a result, the tire and wheel assembly could separate from the truck. Safety Risk: A wheel separation could cause a loss of control and increase the risk of a crash. A wheel that separates could also hit another person or vehicle. Corrective Actions: Daimler Trucks North America (DTNA) will notify owners by mail and instruct you to take your truck to a DTNA authorized service facility for an inspection. The snap ring will be reinstalled or replaced, as necessary.

• Powertrain#2020488October 16, 2020

  966 units affected

  Issue: On certain trucks equipped with an Eaton automated manual transmission and electronic clutch actuator (ECA), a component within the clutch assembly could fail. If this happens, 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. Note: This recall replaces FL-803 (Transport Canada recall 2018-714). Trucks that were repaired under that recall also require this repair. Safety Risk: Sudden and unexpected movement of the vehicle could create a risk of injury or a crash. Corrective Actions: Daimler Trucks North America (DTNA) will notify owners by mail and instruct you to take your truck to a DTNA authorized service facility to replace the clutch and update the transmission software.

• Electrical#2020217May 18, 2020

  840 units affected

  Issue: On certain trucks, an undersized wire in the ground circuit harness could overheat and melt a connector. If this happens, the engine may stall and you may not be able to restart it. Safety Risk: A loss of engine power could increase the risk of a crash. Corrective Actions: Daimler Trucks North America (DTNA) will notify owners by mail and instruct you to take your truck to an authorized DTNA Service Facility to replace the ground wire harness.

• Brakes#2020086March 3, 2020

  231 units affected

  Issue: On certain trucks equipped with air disc brakes, the brake caliper mounting bolts may not be properly tightened. This could cause the caliper bolts to loosen and result in reduced brake effectiveness. Safety Risk: Reduced brake effectiveness could cause an increase in stopping distance and create the risk of a crash. Corrective Actions: The company will notify owners by mail and instruct them to take their truck to an authorized Daimler Trucks of North America Service Facility to inspect and replace the brake caliper bolts as necessary.

• Steering#2019539October 25, 2019

  455 units affected

  Issue: On certain trucks, the steering shaft assembly may not have been installed correctly. This could cause a loss of connection between the steering wheel and the front wheels, resulting in a loss of steering control. Safety Risk: A loss of steering control could create the risk of a crash. Corrective Actions: The company will notify owners by mail and instruct you to take your vehicle to a Daimler Trucks of North America authorized service facility to inspect the steering shaft assembly. It will be repaired if required.

• Lights And Instruments#2019499October 4, 2019

  26 units affected

  Issue: On certain trucks, the warning indicator for low air brake pressure shows “BRAKE AIR” instead of a low brake pressure symbol. Recent changes to Canadian regulations require this symbol to be used. Note: This recall only affect trucks equipped with an ICU4Me or a Light Bar Cluster configuration. Safety Risk: While there is a low risk to safety, as per Canadian regulations, the indicator must use common symbols, instead of words, to avoid driver confusion. Corrective Actions: The company will notify owners by mail and instruct them to take their vehicle to a Daimler Trucks of North America authorized service facility to replace the instrument cluster panel.

• Lights And Instruments#2019336July 4, 2019

  1,280 units affected

  Issue: On certain trucks equipped with electronic stability control (ESC), the brake lights may turn on when the automatic traction control (ATC) activates. Canadian regulations do not allow brake lights to turn on when the automatic traction control activates. Safety Risk: Brake lights that turn on when a vehicle is not slowing could confuse other drivers. Corrective Actions: The company will notify owners by mail and instruct them to take their truck to a Daimler Trucks North America authorized service facility. The truck will either be reprogrammed or retrofitted so the brake lights do not turn on when the automatic traction control (ATC) activates.

• Brakes#2019237May 17, 2019

  110 units affected

  Issue: Certain trucks were built with air reservoir tanks that are too small in relation to the size of the air brake chambers. Canadian regulations require enough air reservoir capacity to ensure the brakes work even with heavy use or when there is a partial loss of the air system. Safety Risk: Reduced braking could cause extended stopping distances and increase the risk of a crash. Corrective Actions: The company will notify owners by mail and instruct them to take their truck to a Daimler Trucks North America authorized service facility to modify the truck to ensure it meets Canadian regulations.

• Lights And Instruments#2019196April 23, 2019

  9 units affected

  Issue: On certain trucks, the odometer display shows the actual distance travelled in kilometers, but the label on the dial face indicates miles. This labelling error could lead to driver confusion about vehicle speed or distance travelled. Safety Risk: While the safety risks may be low, Canadian regulations require this problem to be corrected. Corrective Actions: The company will notify owners by mail and instruct them to take their vehicle to a Daimler Trucks North America authorized service facility to inspect the odometer. The speedometer/odometer will be replaced as required.

• Steering#2018719December 20, 2018

  31 units affected

  On certain vehicles, the bolts that join the steering and tie rod arm to the steering knuckle may not have been properly tightened. This could lead to a separation of the tie rod arm and cause a loss of steering control. This could create a risk of a crash causing injury and/or property damage. Correction: Daimler Trucks North America Authorized Service Facilities will inspect the steering and tie rod arm bolts to ensure they are torqued correctly and install new fasteners as necessary.

• Powertrain#2018714December 19, 2018

  1,472 units affected

  This recall was replaced by Transport Canada Recall No. 2020-488. On certain vehicles equipped with an Eaton automated manual transmission and electronic clutch actuator (ECA), an internal component within the clutch assembly 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: Daimler Trucks of North America Authorized Service Facilities will recalibrate the Transmission Control Module (TCM) and replace components as necessary.

• Brakes#2018550October 9, 2018

  482 units affected

  On certain vehicles equipped with air disc brakes, the brake caliper mounting bolts may be incorrectly torqued. This could result in the caliper bolts loosening, which could lead to the caliper detaching. Insufficiently torqued fasteners may not provide adequate clamping force between the brake caliper and brake anchor plate potentially resulting in reduced brake effectiveness, which would result in increased stopping distances, increasing the risk of a crash causing injury and/or damage to property. Correction: Daimler Trucks of North America Service Facilities will inspect the bolts, and repair as necessary.

• Brakes#2018285May 30, 2018

  683 units affected

  On certain vehicles equipped with air disc brakes, the brake caliper mounting bolts may be incorrectly torqued. This could result in the caliper bolts loosening, which could lead to the caliper detaching. Insufficiently torqued fasteners may not provide adequate clamping force between the brake caliper and brake anchor plate potentially resulting in reduced brake effectiveness, which would result in increased stopping distances, increasing the risk of a crash causing injury and/or damage to property. Correction: Daimler Trucks of North America Service Facilities will inspect the bolts, and repair as necessary. Note: This recall supersedes recall 2017-580. Vehicles repaired as part of the previous recall will require re-inspection and repair.

• Accessories#2017636December 18, 2017

  16,510 units affected

  On certain vehicles equipped with Kidde fire extinguishers with black plastic handles and valves, the fire extinguishers may become clogged or require excessive force to activate. Also, the nozzle may detach from the valve assembly with enough force that it could cause injury, and fail to discharge. In case of fire, failure of the extinguisher to function could result in injury and/or property damage. Correction: Owners will be provided with instructions on how to inspect the fire extinguisher to see if it is recalled. Replacement fire extinguishers will be supplied by Kidde directly. Note: For more information about recalled fire extinguishers, please visit <a href="https://inmarmarketaction.com/kidde/Kidde284CA/">www.kidde.com</a>.

• Brakes#2017583November 28, 2017

  41,763 units affected

  On certain vehicles with air brakes, after several hard brake applications, the brake light pressure switch may not activate the brake lights with a light application of the brake pedal. If the brake lights do not illuminate, following road users would be unaware of the intent of the driver to slow the vehicle, which could increase the risk of a crash causing injury and/or damage to property. Correction: Daimler Trucks North America authorized service facilities will repair the brake light pressure switch.

• Brakes#2017580November 28, 2017

  327 units affected

  On certain vehicles equipped with certain air disc brakes, the brake caliper mounting bolts may be incorrectly torqued. This could result in the caliper bolts loosening, which could lead to the caliper detaching. Insufficiently torqued fasteners may not provide adequate clamping force between the brake caliper and brake anchor plate potentially resulting in reduced brake effectiveness, which would result in increased stopping distances, increasing the risk of a crash causing injury and/or damage to property. Correction: Daimler Trucks of North America Service Facilities will inspect the bolts, and repair as necessary. Note: This recall is superseded by recall 2018285 (FL-772). Please see <a href="http://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/detail.aspx?lang=eng&&rn=2018285">recall 2018285</a> for more information.

• Electrical#2017460September 22, 2017

  14 units affected

  On certain vehicles equipped with all wheel drive, over time, the battery cables could contact the front axle yoke. This could result in the cable chaffing against the yoke and could lead to an electrical short, which could increase the risk of a fire causing injury and/or property damage. Correction: Daimler Trucks North America authorized service facilities will inspect the battery cables and repair as necessary.

• Structure#2017357July 18, 2017

  320 units affected

  On certain vehicles, certain tow hooks that are used for recovery purposes may have been incorrectly manufactured and may not meet material strength specifications. If the tow hook were to fail during towing or a recovery operation, a sudden release of the vehicle without warning could occur, increase the risk of a crash causing injury and/or damage to property. Correction: Daimler Trucks North America authorized service facilities will inspect tow hooks for a certain manufacture date code, and replace if needed.

• Fuel System#2015483October 16, 2015

  575 units affected

  On certain vehicles equipped with Cummins ISB or ISL engines, the fuel filter shell and nut plate could separate, causing a fuel leak and also causing the engine to stall. Stalling would result in a loss of motive power, increasing the risk of a crash resulting in injury and/or damage to property. Correction: Cummins-authorized dealers will replace the fuel filter.

• Visual System#2015251June 5, 2015

  219 units affected

  Certain vehicles may not comply with Canada Motor Vehicle Safety Standard (CMVSS 101) – Location and Identification of Controls and Displays. These vehicles may have been manufactured with an odometer displaying imperial measurements instead of metric. Correction: Dealers will install a new speedometer with a metric odometer and the correct software.

• Accessories#2015133March 25, 2015

  1,403 units affected

  On certain vehicles, the handheld Kidde plastic valve disposable fire extinguisher may not function as designed. In certain instances, the extinguisher may fail to fully discharge when the lever is pressed multiple times. In case of fire, failure of the extinguisher to function could result in injury and/or property damage. Correction: A replacement extinguisher will be provided by dealers or Kidde directly.

• Brakes#2014548December 3, 2014

  714 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 affect repairs as necessary.

• Seats And Restraints#2013427November 27, 2013

  2,888 units affected

  On certain trucks, the seat belts may not comply with Canada Motor Vehicle Safety Standard 209 - Seat Belt Assemblies. Due to a defect in manufacturing, the seat belt buckle may not release as required by the standard. This could hinder egress from the vehicle in an emergency, increasing the risk of injury. Correction: Dealers will inspect and, if necessary, replace affected seatbelt buckles.

• Wheels#2012357October 19, 2012

  On certain vehicles, the wheel rims may have been manufactured incorrectly and could fail. A wheel separating from the vehicle could cause a loss of control and a crash. In addition, the errant wheel assembly could strike a vehicle, stationary object, or a bystander. These issues could result in property damage and/or personal injury. Correction: Dealers will inspect and, if necessary, replace the wheel rims. Note: Further evaluation revealed that no Canadian vehicles are involved.

• Brakes#2012281August 15, 2012

  147 units affected

  On certain trucks, the air tank mounting brackets may crack, which could allow the tank to detach from the vehicle. An air tank separating from the vehicle could strike another vehicle, a stationary object, or a bystander. As well, loss of an air tank would cause a loss of service brakes, which could increase stopping distances, possibly causing a crash. These issues could result in property damage and/or personal injury. Correction: Dealers will replace the air tank mounting brackets.

• Fuel System#2012080February 27, 2012

  11,923 units affected

  On certain trucks equipped with a Detroit Diesel DD13, DD15 or DD16 engine, the support system for the high pressure fuel line (between the fuel pump and the fuel delivery rail) may be damaged during a service repair procedure. Incorrect torque applied to the dampener "P" clip fasteners may damage the fasteners, which could allow the clips to loosen. This could result in a cracked fuel line and a diesel fuel leak. Diesel fuel leakage may ignite on a hot engine surface and cause a fire. As well, diesel fuel spilt on the roadway could endanger other road users by making the roadway unexpectedly slippery. These issues could result in property damage and/or personal injury. Correction: Dealers will replace the high pressure fuel line and install a more robust fuel line support system.

Canadian data updated August 24, 2026