Daimler Trucks North America is recalling a small number of vehicles manufactured with a certain steering arm configuration with air disc brakes, according to National Highway Traffic Safety Administration documents.
The recall affects about 133 model year 2021 Western Star 4700 and 5700, Freightliner Business Class M2, Cascadia, and Custom Chassis XC Chassis vehicles.
On these trucks, one of the six brake caliper mounting bolts on the driver side steer axle may have been incorrectly tightened, which could cause the other caliper bolts to loosen and not provide adequate clamping force between the brake caliper and brake anchor plate, reducing braking effectiveness.
Daimler will notify owners, and dealers will inspect and repair the trucks if necessary. Affected truck owners can contact DTNA customer service at 1-800-547-0712 with recall number FL-873. NHTSA’s recall number is 21V-018.