Caliper mounting bolt not tightened properly
Defect Summary
Daimler trucks north america, llc (dtna) is recalling certain 2021 thomas built buses saf-t-liner hdx and efx school buses. On certain vehicles, one of the six brake caliper mounting bolts on the driver side steer axle may have been incorrectly tightened.
Safety Consequence
The loose bolt could result in the other caliper bolts to loosen. 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.
Corrective Action
Dtna will notify owners, and dealers will inspect and repair as necessary, free of charge. the recall began march 17, 2021. owners may contact dtna customer service at 1-800-547-0712. dtna's number for this recall is fl-873.
Similar Recalls
Other recalls from Daimler Trucks North America, Llc or involving Service Brakes, Hydraulic.
FAQ: Recall 21V017000
Your rights, the repair process, and what each field on this page means.
What is recall 21V017000?
NHTSA recall 21V017000 was issued by Daimler Trucks North America, Llc on January 20, 2021. It addresses: Caliper mounting bolt not tightened properly. The recall affects approximately 6 vehicles, with the defect involving the Service Brakes, Hydraulic component.
How do I get this recall repaired?
Contact any authorized Daimler Trucks North America, Llc dealer and reference NHTSA recall ID 21V017000 or the manufacturer campaign number FL-873. Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.