Parking brake may release unexpectedly/fmvss 121
Defect Summary
Daimler trucks north america, llc (dtna) is recalling certain 2021 thomas built saf-t-liner c2 jouley electric school buses. if the service brake pedal is pressed and then released while the parking brake is engaged, the parking brake may release unexpectedly. as such, these vehicles fail to comply with the requirements of federal motor vehicle safety standard (fmvss) number 121, "air brake systems."
Safety Consequence
An unexpected disengagement of the parking brake without continual application of the service brake may allow the vehicle to roll freely, increasing the risk of a vehicle crash.
Corrective Action
Dtna will notify owners, and dealers will update the electronic control unit (ecu) software, free of charge. the recall began january 22, 2021. owners may contact dtna customer service at 1-800-745-8000. dtna's number for this recall is fl-870.
Similar Recalls
Other recalls from Daimler Trucks North America, Llc or involving Parking Brake.
FAQ: Recall 20V787000
Your rights, the repair process, and what each field on this page means.
What is recall 20V787000?
NHTSA recall 20V787000 was issued by Daimler Trucks North America, Llc on December 16, 2020. It addresses: Parking brake may release unexpectedly/fmvss 121. The recall affects approximately 28 vehicles, with the defect involving the Parking Brake component.
How do I get this recall repaired?
Contact any authorized Daimler Trucks North America, Llc dealer and reference NHTSA recall ID 20V787000 or the manufacturer campaign number FL-870. 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.