Speedometer may read lower than actual speed
Defect Summary
Daimler trucks north america (dtna) is recalling certain model year 2014-2015 thomas built saf-t-liner efx school buses manufactured september 30, 2013, through november 15, 2013. in the affected vehicles, due to an incorrect calibration, the speedometer may display a speed lower than the vehicle is actually traveling.
Safety Consequence
With the incorrect calibration, the driver may unknowingly exceed the posted speed limit, increasing the risk of a crash.
Corrective Action
Dtna will notify owners, and dealers will update the instrument cluster software to correct the calibration, free of charge. Owners may contact dtna at 1-800-547-0712. Dtna's number for this recall is fl-658.
Similar Recalls
Other recalls from Daimler Trucks North America, Llc or involving Electrical System.
FAQ: Recall 13V639000
Your rights, the repair process, and what each field on this page means.
What is recall 13V639000?
NHTSA recall 13V639000 was issued by Daimler Trucks North America, Llc on December 20, 2013. It addresses: Speedometer may read lower than actual speed. The recall affects approximately 45 vehicles, with the defect involving the Electrical System component.
How do I get this recall repaired?
Contact any authorized Daimler Trucks North America, Llc dealer and reference NHTSA recall ID 13V639000 or the manufacturer campaign number FL-658. 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.