Hybrid transmission software
Defect Summary
Daimler trucks north america (dtna) is recalling certain model year 2011-2013 thomas built saf-t-liner c2 school buses manufactured december 3, 2009, through february 8, 2012, and equipped with eaton hybrid automated transmissions. the software controlling the affected transmissions may improperly raise the vehicle's engine speed during downshifts without the driver's input.
Safety Consequence
The increase in engine speed may result in unintended acceleration, increasing the risk of a crash.
Corrective Action
Dtna will notify owners and dealers will update the hybrid transmission software, free of charge. the recall began on february 5, 2014. owners may contact dtna at 1-503-745-6910. dtna's recall number is fl-657.
Similar Recalls
Other recalls from Daimler Trucks North America, Llc or involving Power Train.
FAQ: Recall 13V633000
Your rights, the repair process, and what each field on this page means.
What is recall 13V633000?
NHTSA recall 13V633000 was issued by Daimler Trucks North America, Llc on December 16, 2013. It addresses: Hybrid transmission software. The recall affects approximately 29 vehicles, with the defect involving the Power Train component.
How do I get this recall repaired?
Contact any authorized Daimler Trucks North America, Llc dealer and reference NHTSA recall ID 13V633000 or the manufacturer campaign number FL-657. 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.