2023 Thomas Built Buses Saf-T-Liner Efx Problems: 0 Complaints, 6 Recalls

The worst 2023 Thomas Built Buses Saf-T-Liner Efx problems

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Recalls 6

Engine and engine cooling: cooling system: hoses/lines/piping/fittingsReported February 13, 2026 · 2,843 vehicles affected

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

Engine and engine cooling: cooling system: hoses/lines/piping/fittingsReported February 13, 2026 · 52 vehicles affected

What is wrong: Daimler Trucks North America, LLC (DTNA) is recalling certain Thomas Built Buses 2023-2025 Saf-T-Liner EFX and 2023-2026 Saf-T-Liner HDX vehicles. 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 26V087000 · Recall details

Steering: linkages: tie rod assemblyReported April 7, 2023 · 48 vehicles affected

What is wrong: Daimler Trucks North America, LLC (DTNA) is recalling certain 2023 Thomas Built Buses SAF-T-LINER SAF-T-LINER C2 Jouley, Thomas Built Buses SAF-T-LINER EFX, Thomas Built Buses SAF-T-Liner HDX, Thomas Built Buses Chassis and 2023-2024 School Bus Chassis school buses. The tie rod may be missing a fastener, allowing the steer arm to detach.
Risk: A detached steering arm can result in a sudden loss of steering control, increasing the risk of a crash.
Remedy: DTNA will inspect and repair or replace the tie rod assembly as necessary, free of charge. Owner notification letters were mailed August 11, 2023. Owners may contact DTNA customer service at 1‑800‑547‑0712. DTNA's number for this recall is FL970.

Recall number 23V259000 · Recall details

Structure: body: roof and pillarsReported October 12, 2022 · 17,613 vehicles affected

What is wrong: Daimler Trucks North America, LLC (DTNA) is recalling certain 2011-2023 Thomas Built EFX and HDX school buses. The exterior roof panel was manufactured with insufficient joint strength. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 221, "School Bus Body Joint Strength."
Risk: A school bus exterior roof panel with insufficient joint strength may separate during a crash, increasing the risk of injury.
Remedy: Dealers will add additional mechanical fasteners to secure the joints, free of charge. Owner notification letters were mailed June 2, 2023. Owners may contact DTNA customer service at 1‑800‑547‑0712. DTNA's number for this recall is FL957.

Recall number 22V762000 · Recall details

Structure: emergency: escape/egress/exitReported July 20, 2022 · 3 vehicles affected

What is wrong: Daimler Trucks North America, LLC (DTNA) is recalling certain 2023 Thomas Built Buses Saf-T-Liner EFX school buses. The buses may not have a sufficient number of emergency exits. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 217, "Bus Emergency Exits And Window Retention And Release."
Risk: An insufficient number of emergency exits can delay passengers from exiting the vehicle during an emergency, increasing their risk of injury.
Remedy: Dealers will add an emergency exit roof hatch, free of charge. All vehicles have been remedied. Owners may contact DTNA's customer service at 1‑800‑547‑0712. DTNA's number for this recall is FL947.

Recall number 22V517000 · Recall details

Seats: critical fastenersReported March 11, 2022 · 539 vehicles affected

What is wrong: Daimler Trucks North America, LLC (DTNA) is recalling certain 2020-2023 Thomas Built Buses Saf-T-Liner EFX School Buses. The passenger seat mounting bolts may break due to improperly placed mounting that allows contact with the chassis cross member bolts. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard numbers 210, "Seat Belt Assembly Anchorage" and 222, "School Bus Passenger Seating and Crash Protection."
Risk: A seat with broken mounting bolts may not properly restrain an occupant in a crash, increasing their risk of injury.
Remedy: Dealers will add a spacer to provide proper clearance between the passenger seat mounting and chassis cross member bolts, free of charge. Owner notification letters were mailed June 2, 2022. Owners may contact DTNA customer service at 1‑800‑547‑0712. DTNA's number for this recall is FL-921.

Recall number 22V153000 · Recall details

See all 6 recalls for the 2023 Thomas Built Buses Saf-T-Liner Efx

Technical service bulletins for the 2023 Thomas Built Buses Saf-T-Liner Efx 22

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

Nov 11, 2024 Warranty extensionWarranty Information letter for Detroit Line or Line Seal, High Pressure Fuel Injector Standard Repair...
Jul 6, 2026 Service bulletinTechnical Service Bulletin for Electrical Wiring Modifications for Type DFootwell Heater
Apr 24, 2026 OtherService Solution for EFX AC Upper bracket TBB 130987 replaced with TBB 248310
Mar 20, 2026 OtherService Solution for Timer relay TBB 202400 replacement
Jan 26, 2026 OtherService Solution for EFX Shock Mount Frame Rail Crack Repair
Sep 9, 2025 OtherMy communications for DTNA Announces Extended Coverage Policy Updates
Jun 17, 2025 OtherService Solution for Floor Covering Bubbles
Feb 5, 2025 OtherService Solution for HDX / EFX front lighting replacement
Nov 20, 2024 OtherService Solution for Power steering Pump TBB 61280827 replacement with TBB 246122
Oct 17, 2024 OtherCX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test...

See all 22 bulletins for the 2023 Thomas Built Buses Saf-T-Liner Efx

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2009

Questions about the 2023 Thomas Built Buses Saf-T-Liner Efx

Is the 2023 Thomas Built Buses Saf-T-Liner Efx reliable?

Owners have filed 0 complaints about the 2023 Thomas Built Buses Saf-T-Liner Efx.

What is the most common problem with the 2023 Thomas Built Buses Saf-T-Liner Efx?

There are not enough complaints to tell.

How many recalls does the 2023 Thomas Built Buses Saf-T-Liner Efx have?

6 recalls, covering engine and engine cooling, steering and structure.

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2023 Thomas Built Buses Saf-T-Liner Efx problems