Alternator power cable connection may be loose
Defect Summary
Daimler trucks north america, llc (dtna) is recalling certain 2020-2022 thomas built efx and hdx school buses. the nut for the power cable stud on the alternator may not have been tightened properly, which can cause a loose cable connection.
Safety Consequence
A loose power cable connection may cause electrical arcing, which can increase the risk of a fire.
Corrective Action
Dealers will inspect the alternator power cable connection and tighten it if necessary, free of charge. owner notification letters were mailed on december 17, 2021. Owners may contact dtna customer service at 1-800-547-0712. dtna's number for this recall is fl904.
Similar Recalls
Other recalls from Daimler Trucks North America, Llc or involving Electrical System.
FAQ: Recall 21V850000
Your rights, the repair process, and what each field on this page means.
What is recall 21V850000?
NHTSA recall 21V850000 was issued by Daimler Trucks North America, Llc on November 2, 2021. It addresses: Alternator power cable connection may be loose. The recall affects approximately 1,434 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 21V850000 or the manufacturer campaign number FL904. 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.