The worst 2026 Thomas Built Buses Saf-T-Liner Efx problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
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Recalls 2
Engine and engine cooling: cooling system: hoses/lines/piping/fittings
- What is wrong
- Daimler Trucks North America, LLC (DTNA) is recalling certain Thomas Built Buses 2023-2026 Saf-T-Liner EFX and Saf-T-Liner HDX school buses. The heater hose clamps may not have been tightened properly, causing the hose to disconnect and leak heating coolant inside the passenger compartment.
- Risk
- Contact with hot heating coolant may burn occupants, increasing the risk of injury.
- Remedy
- Dealers will inspect and replace the heater hose clamps, as necessary, free of charge. Owner notification letters were mailed April 10, 2026. Owners may contact DTNA customer service at 1‑800‑547‑0712. DTNA's number for this recall is F1030.
Recall number 26V086000 · Recall details
Steering: critical fasteners
- What is wrong
- Daimler Trucks North America, LLC (DTNA) is recalling certain Thomas Built Buses 2025-2026 Saf-T-Liner HDX, Saf-T-Liner C2, 2026 Saf-T-Liner EFX, and Saf-T-Liner C2 Jouley school buses. The tie rod castle nut and cotter pin may not be installed properly, which can result in a loss of vehicle steering control.
- Risk
- A loss of vehicle steering control increases the risk of a crash.
- Remedy
- Dealers will inspect and replace the tie rod assembly, as necessary, free of charge. Owner notification letters were mailed November 10, 2025. Owners may contact DTNA customer service at 1‑800‑547‑0712. DTNA's number for this recall is D25R2.
Recall number 25V604000 · Recall details
See all 2 recalls for the 2026 Thomas Built Buses Saf-T-Liner Efx
Technical service bulletins for the 2026 Thomas Built Buses Saf-T-Liner Efx 6
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Service Solution for EFX AC Upper bracket TBB 130987 replaced with TBB 248310
- Service Solution for Timer relay TBB 202400 replacement
- My Communications for RAI RK6166302 Informational Bulletin
- Service Solution for EFX Shock Mount Frame Rail Crack Repair
- Product Awareness Bulletin for discontinuation of IMMI T3 Activity Seats
- My communications for DTNA Announces Extended Coverage Policy Updates
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Questions about the 2026 Thomas Built Buses Saf-T-Liner Efx
Is the 2026 Thomas Built Buses Saf-T-Liner Efx reliable?
Owners have filed 0 complaints about the 2026 Thomas Built Buses Saf-T-Liner Efx.
What is the most common problem with the 2026 Thomas Built Buses Saf-T-Liner Efx?
There are not enough complaints to tell.
How many recalls does the 2026 Thomas Built Buses Saf-T-Liner Efx have?
2 recalls, covering engine and engine cooling and steering.
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