Thomas Built Buses Recall 2019-2020 Models for Brake Caliper Bolt Issue
Daimler Trucks is recalling 581 Thomas Built school buses because loose brake caliper bolts may reduce braking effectiveness, increasing crash risk.
What this means for you
Our assessment, not the agency’s: severity 4/5 (Severe).
The hazard poses a serious risk of illness, injury, or structural failure. Stop using the product immediately and contact the manufacturer for a refund or repair.
Our severity reasoning: The recall involves a structural vehicle defect in the braking system that reduces brake effectiveness and increases the risk of a crash, meeting the criteria for a Severe rating.
Plain-English summary
Daimler Trucks North America LLC (DTNA) is recalling certain 2019-2020 Thomas Built Saf-T-Liner HDX, EFX, and C2 school buses equipped with air disc brakes. The recall involves 581 vehicles where the brake caliper mounting bolts may have been insufficiently tightened.
Loose brake caliper mounting bolts can reduce brake effectiveness, which increases the risk of a crash. This defect affects the service brakes, specifically the air disc caliper components.
DTNA will notify owners, and dealers will inspect and repair the vehicles free of charge. The recall began on May 2, 2020. Owners may contact DTNA customer service at 1-800-547-0712 or the NHTSA Vehicle Safety Hotline at 1-888-327-4236.
The recalled product
- Product
- THOMAS BUILT BUSES SAF-T-LINER HDX, SAF-T-LINER C2, SAF-T-LINER EFX
- Brand
- THOMAS BUILT BUSES
- Manufacturer
- Daimler Trucks North America LLC
- Category
- Vehicle — School Bus
- Hazard
- Affected units
- 581
Is your product affected?
Check your packaging against the codes below. If any of them match, the product is part of this recall.
Model numbers (3)
- SAF-T-LINER HDX
- SAF-T-LINER C2
- SAF-T-LINER EFX
Distribution
Distributed nationwide across the United States.
Related recalls
Same brand · THOMAS BUILT BUSES
- HighThomas Built Buses Recalls 2027 Saf-T-Liner C2 School Buses
NHTSA · 2026-10-21
- High2027 Thomas Built Buses Recall for Headlight Software Error
NHTSA · 2026-10-01
- Severe
- Severe
- Severe
Same manufacturer · Daimler Trucks North America LLC
See all →- SevereFreightliner and FCCC Trucks Recalled for Fuel Hose Separation Risk
NHTSA · 2026-10-07
- SevereFreightliner Recalls Business Class M2 Trucks for Fire Risk
NHTSA · 2026-10-01
- Severe
Same hazard · brake failure
See all →- SevereFord Recalls ABS Modules With Incorrect Software Programming
NHTSA · 2026-10-20
- Severe
- Severe
- SevereNova Bus Recalls 2024-2025 LFS Transit Buses for Parking Brake Defect
NHTSA · 2026-09-22
- SeverePeterbilt Recalls 2027 548 Trucks Due to Brake Valve Size Issues
NHTSA · 2026-09-01
Similar recalls
- SevereThomas Built Buses Recalls 2018-2019 Models Due to Brake Caliper Bolts
NHTSA · 2018-10-05
- SevereThomas Built Buses Recalling School Buses for Brake Bolt Issue
NHTSA · 2018-05-29
- Severe2021 Thomas Built Buses Recall for Brake Caliper Bolt Tightening Defect
NHTSA · 2021-01-20
- Severe2019 Thomas Built Buses Saf-T-Liner C2 Brake Recall
NHTSA · 2019-05-14
- SevereThomas Built Buses Recalls School Buses for Loose Steering Bolts
NHTSA · 2018-12-19
- SevereThomas Built Buses Recall School Buses Due to Dragging Rear Brakes
NHTSA · 2019-06-11