Thomas Built Buses Recall: Hot Coolant Leak Risk
Thomas Built Buses recalls certain Saf-T-Liner EFX and HDX school buses due to heater hose clamp issues that may cause hot coolant leaks inside the passenger compartment.
Stop using this now
Contact with hot heating coolant may burn occupants, increasing the risk of injury.
What happened, in plain English
Daimler Trucks North America is recalling certain Thomas Built Buses, including the 2023-2026 Saf-T-Liner EFX and Saf-T-Liner HDX school buses. The heater hose clamps may not have been tightened properly, which can cause the hose to disconnect and leak heating coolant inside the passenger compartment. This leak poses a risk of burns to occupants. Read more at govinfonow.com/recall/1364880-thomas-built-buses-recall-hot-coolant-leak-risk.
Source Summary by GovInfoNow · govinfonow.com/recall/1364880-thomas-built-buses-recall-hot-coolant-leak-risk · Updated October 9, 2026 · Official notice: NHTSA #26V086000
Cite this page
“Thomas Built Buses Recall: Hot Coolant Leak Risk.” GovInfoNow, updated October 9, 2026. https://govinfonow.com/recall/1364880-thomas-built-buses-recall-hot-coolant-leak-risk. Based on NHTSA recall #26V086000 (https://www.nhtsa.gov/recalls?nhtsaId=26V086000).
Why it’s dangerous
Improperly tightened heater hose clamps can allow the hose to disconnect. This disconnection causes heating coolant to leak into the passenger compartment, where it can come into contact with occupants and cause burns.
Who’s affected
Owners and operators of Thomas Built Buses, specifically certain 2023-2026 Saf-T-Liner EFX and Saf-T-Liner HDX school buses. Occupants of these vehicles are at risk of injury from hot coolant leaks.
How to tell if you have this one
Check if you own a Thomas Built Bus that is a Saf-T-Liner EFX or Saf-T-Liner HDX model from years 2023-2026. Owner notification letters were mailed on April 10, 2026. You can contact DTNA customer service at 1-800-547-0712 using recall number F1030 to verify if your specific bus is included.
- Brand
Thomas Built Buses- Category
Vehicle
What to do — step by step
Contact Dealer or Service Center
Dealers will inspect and replace the heater hose clamps as necessary, free of charge.
Wait for Notification Letter
Owner notification letters regarding this recall were mailed on April 10, 2026.
April 10, 2026
What NHTSA says to do
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.
How this recall unfolded
Recall timeline
Owners were mailed letters 55 days after NHTSA received the defect report.
- NHTSA received the defect report
- Owner letters mailed
- Added to GovInfoNow
Dates from the agency record only; steps without a date are left out.
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Where this comes from
The facts (hazard, remedy, dates, manufacturer) are pulled from the official NHTSA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
- Official source: NHTSA Recall #26V086000 (February 14, 2026)
- Plain-language summary written by qwen3.6:35b-a3b on October 9, 2026, from the official record above. Not reviewed by a person — if it conflicts with the NHTSA notice, the notice is correct. Report an error on this page.
- GovInfoNow is an independent service and is not a government agency. We republish official NHTSA recall data; we don’t issue, amend or administer recalls.