THOMAS BUILT BUSES 2017 THOMAS BUILT BUSES SAF-T-LINER EFX Recall
Check Your Product
According to the National Highway Traffic Safety Administration (NHTSA)
Product
2017 THOMAS BUILT BUSES SAF-T-LINER EFX
Brand
THOMAS BUILT BUSES
Lot Codes / Batch Numbers
Not specified in NHTSA notice. Check official source for details.
Products Sold
Model Year 2017
Daimler Trucks North America LLC is recalling certain 2017 THOMAS BUILT BUSES SAF-T-LINER EFX vehicles due to service brakes, air:supply:check valve issues. 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 a.
Summary derived from NHTSA notice
Reason for Recall
As stated by NHTSA
Daimler Trucks North America LLC (DTNA) is recalling certain 2017-2018 Thomas Built Buses Saf-T-Liner EFX school 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.
Reported concern (NHTSA)
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.
Recommended Action
Per NHTSA guidance
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.
Verify this information on the official source
For complete details and official instructions, check the National Highway Traffic Safety Administration (NHTSA) directly.
View official NHTSA recall noticePage updated: Jan 10, 2026