Thomas Built Buses Recall: Hot Coolant Leak Hazard
Thomas Built Buses recalls certain Saf-T-Liner EFX and HDX 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 2023-2025 Saf-T-Liner EFX and 2023-2026 Saf-T-Liner HDX models. 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/1364881-thomas-built-buses-recall-hot-coolant-leak-hazard.
Source Summary by GovInfoNow · govinfonow.com/recall/1364881-thomas-built-buses-recall-hot-coolant-leak-hazard · Updated October 9, 2026 · Official notice: NHTSA #26V087000
Cite this page
“Thomas Built Buses Recall: Hot Coolant Leak Hazard.” GovInfoNow, updated October 9, 2026. https://govinfonow.com/recall/1364881-thomas-built-buses-recall-hot-coolant-leak-hazard. Based on NHTSA recall #26V087000 (https://www.nhtsa.gov/recalls?nhtsaId=26V087000).
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 Saf-T-Liner EFX (2023-2025) and Saf-T-Liner HDX (2023-2026) vehicles are affected. Occupants inside these buses 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 model Saf-T-Liner EFX (manufactured 2023-2025) or Saf-T-Liner HDX (manufactured 2023-2026). Look for owner notification letters mailed by DTNA starting April 10, 2026. You can also verify your vehicle's status by contacting DTNA customer service at 1-800-547-0712 and referencing recall number F1030.
- Brand
Thomas Built Buses- Category
Vehicle
What to do — step by step
Wait for Notification
Owner notification letters were mailed starting April 10, 2026.
Contact Dealer
Dealers will inspect and replace the heater hose clamps as necessary, free of charge.
Call Customer Service
Owners may contact DTNA customer service at 1-800-547-0712 for more information.
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 #26V087000 (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.