2023 Thomas Built Buses SAF-T-Liner EFX Problems, Complaints & Recalls

Source: NHTSA · Updated Feb 17, 2026 · 0 owner complaints analyzed

Compared with other SAF-T-Liner EFX years
Not enough data 2nd of 21 for complaints
NHTSA crash rating
Not rated

NHTSA has received no owner complaints about the 2023 Thomas Built Buses SAF-T-Liner EFX so far. There are 6 safety recalls covering this model year.

Complaints are unverified owner reports and are not adjusted for sales volume.

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2023 Thomas Built Buses SAF-T-Liner EFX recalls (6)

Tap a recall to see the problem, the risk and the fix.

Engine and engine cooling:cooling system:hoses/lines/piping/fittingsFeb 13, 2026 · NHTSA campaign 26V086000 · 2,843 vehicles

Problem: 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.

Fix: 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.

Engine and engine cooling:cooling system:hoses/lines/piping/fittingsFeb 13, 2026 · NHTSA campaign 26V087000 · 52 vehicles

Problem: 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.

Fix: 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.

Steering:linkages:tie rod assemblyApr 7, 2023 · NHTSA campaign 23V259000 · 48 vehicles

Problem: 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.

Fix: 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.

Structure:body:roof and pillarsOct 12, 2022 · NHTSA campaign 22V762000 · 17,613 vehicles

Problem: 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.

Fix: 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.

Structure:emergency:escape/egress/exitJul 20, 2022 · NHTSA campaign 22V517000 · 3 vehicles

Problem: 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.

Fix: 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.

Seats:critical fastenersMar 11, 2022 · NHTSA campaign 22V153000 · 539 vehicles

Problem: 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.

Fix: 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.

To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.

Other Thomas Built Buses SAF-T-Liner EFX years

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Frequently asked questions

What are the most common problems with the 2023 Thomas Built Buses SAF-T-Liner EFX?

NHTSA has no owner complaints on file yet.

Was there a recall on the 2023 Thomas Built Buses SAF-T-Liner EFX?

Yes, 6 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.

Was the 2023 Thomas Built Buses SAF-T-Liner EFX a good year?

Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other SAF-T-Liner EFX model years, the 2023 has too little data to compare. Always get a pre-purchase inspection and check the VIN for open recalls.