Daimler Trucks North America (DTNA) is recalling133 model year 2021 Western Star 4700s & 5700s, Freightliner Business Class M2s, Cascadias, and Custom Chassis XC Chassis vehicles manufactured with a certain steering arm configuration with air disc brakes identified by the axle assembly supplier.
On certain vehicles, one of the six brake caliper mounting bolts on the driver side steer axle may have been incorrectly tightened.
The loose bolt could result in the other caliper bolts loosening. Insufficiently tightened bolts may not provide adequate clamping force between the brake caliper and brake anchor plate, resulting in reduced brake effectiveness, increasing the risk of a crash.
What to do
DTNA will notify owners, and dealers will inspect and repair -- as necessary -- free of charge.
The recall is expected to begin March 19, 2021.
Owners may contact DTNA customer service at (800) 547-0712. DTNA's number for this recall is FL-873.