Safety defect investigations, technical specifications, and manufacturer repair notices for Canadian owners.
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Safety recall notices and repair campaigns registered for the 2021 Western Star 47x in Canada.
On certain trucks, the recall repairs completed by a Daimler Truck North America (DTNA) dealer during recall F1020 (Transport Canada recall no. 2025-269) may not be effective. As a result, a second repair is required. On certain trucks, the stud on the frame that connects the battery and/or auxiliary power distribution to the starter may not have been installed properly. As a result, there could be a short circuit, and the wiring could overheat and melt. Note: This recall replaces Transport Canada recall no. 2025-269. Vehicles that were repaired under that recall also require this repair.
A short circuit and/or wiring that overheats and melts can create the risk of a fire.
Daimler Truck North America (DTNA) will notify owners by mail and advise you to take your truck to a DTNA authorized service facility to remove the stud and relocate the jump start connection.
On certain trucks, the fasteners for the axle clamp(s) may not have been tightened properly. As a result, the clamps could loosen. If this happens, the axle could move and cause a loss of steering control. Note: This recall only affects certain trucks equipped with a TufTrac Gen 2 suspension.
A loss of steering control could create the risk of a crash.
Daimler Truck North America (DTNA) will notify the owners by mail and advise you to take your truck to a DTNA authorized service facility to inspect and tighten the axle clamp fasteners. The axle clamp castings will be replaced, as necessary.
On certain trucks, the brake modulator valves could corrode. As a result, the brakes on one wheel could fully apply when the roll stability control system activates. If this happens, there could be a brake pull that can cause the truck to change direction. Note: This problem does not affect the service brakes.
A brake pull that causes the vehicle to change direction suddenly can increase the risk of crash.
Daimler Truck North America (DTNA) will notify owners by mail and instruct you to take your truck to a DTNA authorized service facility to inspect, and if necessary, replace the brake modulator valves.
On certain trucks, the brake modulator valves could corrode. As a result, the brakes on one wheel could fully apply during an adaptive cruise control braking event. If this happens, there could be a brake pull that can cause the truck to change direction. Note: This problem does not affect the regular service brakes.
A brake pull that causes the vehicle to change direction suddenly can increase the risk of crash.
Daimler Truck North America (DTNA) will notify owners by mail and instruct you to take your truck to a DTNA authorized service facility to inspect, and if necessary, replace the brake modulator valves.
On certain trucks, the stainless steel cover(s) on the hood bezel(s) may not be properly attached. As a result, a bezel cover could detach from the truck while driving.
A metal cover that detaches from the truck could create a road hazard for others and increase the risk of a crash.
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 hood bezel covers.
On certain trucks, the stainless steel cover for the side air-intake on the hood may not be properly attached. As a result, the intake cover could detach from the truck while driving.
An air-intake cover that detaches from the truck could create a hazard for other drivers and nearby people, and could increase the risk of a crash.
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 side air-intake cover on the hood.
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.
A fuel leak can create the risk of a fire.
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.
Official Transport Canada safety campaigns, Canadian motor vehicle safety compliance standards and live VIN specifications.
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