Incorrectly plumbed air system check valve
Defect Summary
Daimler trucks north america llc (dtna) is recalling certain 2017-2018 thomas built buses saf-t-liner efx transit buses. the check valve for the air brake system may not be plumbed correctly which can cause the primary air system to not be isolated from the secondary air system.
Safety Consequence
In the event of a rapid loss of air pressure in the secondary system, the incorrectly plumbed check valve can cause rapid air loss in both secondary and primary system, causing the parking brakes to activate suddenly. this will increase the risk of a crash.
Corrective Action
Dtna will notify owners, and dealers will inspect and repair the check valve as needed, free of charge. the recall began on august 12, 2018. owners may contact dtna customer service at 1-800-547-0712. dtna's number for this recall is fl-774.
Similar Recalls
Other recalls from Daimler Trucks North America, Llc or involving Service Brakes, Air.
FAQ: Recall 18V410000
Your rights, the repair process, and what each field on this page means.
What is recall 18V410000?
NHTSA recall 18V410000 was issued by Daimler Trucks North America, Llc on June 15, 2018. It addresses: Incorrectly plumbed air system check valve. The recall affects approximately 5 vehicles, with the defect involving the Service Brakes, Air component.
How do I get this recall repaired?
Contact any authorized Daimler Trucks North America, Llc dealer and reference NHTSA recall ID 18V410000 or the manufacturer campaign number FL-774. 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.