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2021 Thomas Built Buses SAF-T-Liner EFX recalls

Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.

7 recalls found in NHTSA data as of September 22, 2026

For the 2021 Thomas Built Buses SAF-T-Liner EFX. These apply to the model and year, not to one particular vehicle: check your VIN to see whether yours is included and whether it has been repaired.

Has your Thomas Built Buses been repaired?

Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.

NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Thomas Built Buses dealer can also check your VIN. Recall repairs are free.

2021 Thomas Built Buses SAF-T-Liner EFX recalls, newest first

July 24, 2024NHTSA 24V55500027,494 vehicles potentially affected

Equipment › Other › Labels

Summary
Daimler Trucks North America, LLC (DTNA) is recalling certain Thomas Built Buses 2019-2022 Saf-T-Liner C2, Saf-T-Liner EFX, Saf-T-Liner HDX, Minotour DRW, 2020-2022 Saf-T-Liner C2 Jouley, and Minotour SRW school buses. The Emergency Exit Label lettering is too small and may be difficult to read. 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."
Consequence
Emergency exit labels that are difficult to read can prevent or delay the use of the emergency exit, increasing the risk of injury.
Remedy
Dealers will correct the lettering, free of charge. Owner notification letters were mailed September 5, 2024. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL918.

This recall on nhtsa.gov

October 12, 2022NHTSA 22V76200017,613 vehicles potentially affected

Structure › Body › Roof and pillars

Summary
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."
Consequence
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.

This recall on nhtsa.gov

July 19, 2022NHTSA 22V5100001,806 vehicles potentially affected

Seats › Mid/rear assembly

Summary
Daimler Trucks North America, LLC (DTNA) is recalling certain 2014-23 Thomas Built Buses HDX and 2014-22 EFX school buses equipped with 39-inch S3C seat frames and 3-point flex seatbelts. The passenger seat frames may crack and rotate from fatigue.
Consequence
Cracked passenger seat frames may not adequately secure passengers in the event of a crash, increasing the risk of injury.
Remedy
Dealers will secure the seat frames with brackets, free of charge. Owner notification letters were mail December 4, 2023. Owners may contact DTNA's customer service at 1-800-547-0712. DTNA's number for this recall is FL946.
Components
Seats › Mid/rear assembly; Seats

This recall on nhtsa.gov

March 11, 2022NHTSA 22V153000539 vehicles potentially affected

Seats › Critical fasteners

Summary
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."
Consequence
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.

This recall on nhtsa.gov

November 2, 2021NHTSA 21V8500001,434 vehicles potentially affected

Electrical system › Alternator/generator/regulator

Summary
Daimler Trucks North America, LLC (DTNA) is recalling certain 2020-2022 Thomas Built EFX and HDX school buses. The nut for the power cable stud on the alternator may not have been tightened properly, which can cause a loose cable connection.
Consequence
A loose power cable connection may cause electrical arcing, which can increase the risk of a fire.
Remedy
Dealers will inspect the alternator power cable connection and tighten it if necessary, free of charge. Owner notification letters were mailed on December 17, 2021. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL904.

This recall on nhtsa.gov

April 12, 2021NHTSA 21V2550001,252 vehicles potentially affected

Steering › Critical fasteners

Summary
Daimler Trucks North America, LLC (DTNA) is recalling certain 2021-2022 Thomas Built Buses Saf-T-Liner C2, Saf-T-Liner EFX, and Saf-T-Liner HDX school buses. The steering arm and tie rod bolts may have a defective seam that can fracture.
Consequence
A fractured bolt may cause a loss of steering, increasing the risk of a crash.
Remedy
DTNA will notify owners, and dealers will replace the tie rod arm bolts and steering arm, free of charge. The recall began on June 10, 2021. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-884.
Components
Steering › Critical fasteners; Steering › Linkages › Tie rod assembly

This recall on nhtsa.gov

January 20, 2021NHTSA 21V0170006 vehicles potentially affected

Service brakes, hydraulic › Foundation components › Disc › Caliper

Summary
Daimler Trucks North America, LLC (DTNA) is recalling certain 2021 Thomas Built Buses Saf-T-Liner HDX and EFX school buses. On certain vehicles, one of the six brake caliper mounting bolts on the driver side steer axle may have been incorrectly tightened.
Consequence
The loose bolt could result in the other caliper bolts to loosen. Insufficiently tightened bolts may not provide adequate clamping force between the brake caliper and brake anchor plate, resulting in reduced brake effectiveness, increasing the risk of a crash.
Remedy
DTNA will notify owners, and dealers will inspect and repair as necessary, free of charge. The recall began March 17, 2021. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-873.

This recall on nhtsa.gov

Owner complaints

No owner complaints about the 2021 Thomas Built Buses SAF-T-Liner EFX were found in NHTSA’s complaint data.

Other Thomas Built Buses SAF-T-Liner EFX years

Other 2021 Thomas Built Buses models

Most recalled 2021 vehicles

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All of 2021’s most recalled vehicles

Questions

Does the 2021 Thomas Built Buses SAF-T-Liner EFX have any recalls?
7 recalls found in NHTSA data as of September 22, 2026, covering: equipment, structure, seats, electrical system, steering, service brakes, hydraulic. Recalls apply to the model and year; whether a particular vehicle is included, and whether it has been repaired, depends on its VIN.
How do I check if my 2021 Thomas Built Buses SAF-T-Liner EFX recall has been fixed?
Enter your 17-character VIN at nhtsa.gov/recalls, or ask a Thomas Built Buses dealer. Recall repairs are free. NHTSA's VIN search doesn't list recalls that were already repaired.
How many complaints have owners filed about the 2021 Thomas Built Buses SAF-T-Liner EFX?
0 complaints filed with NHTSA. Complaints are unverified reports from the public that NHTSA uses to decide what to investigate.