2009–2010 Thomas Built Buses HDX Recall: Electrical System
NHTSA campaign 10V184000 · Electrical System · filed May 3, 2010 · verified Jul 30, 2026
The defect
DTNA IS RECALLING CERTAIN MODEL YEAR 2009 AND 2010 HDX NON SCHOOL BUSES MANUFACTURED BEGINNING NOVEMBER 20, 2007 THROUGH MAY 8, 2009. THE HEATER COOLANT FLOW VALVE ACTUATOR 0-RING MAY ALLOW COOLANT LEAKAGE INTO THE HEATER CORE COMPARTMENT AND THE ACTUATOR PC BOARD AREA POTENTIALLY CAUSING THE ACTUATOR TO OVERHEAT AND/OR MELT.
The risk
AN OVERHEATED AND/OR MELTED ACTUATOR MAY RESULT IN A VEHICLE FIRE.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
DTNA WILL NOTIFY OWNERS AND REPAIRS WILL BE PERFORMED BY THOMAS BUILT DEALERSHIPS FREE OF CHARGE. THE SAFETY RECALL BEGAN ON JULY 6, 2010. OWNERS MAY CONTACT THOMAS BUILT AT 1-336-889-4871.
OWNERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO <A HREF=HTTP://WWW.SAFERCAR.GOV>HTTP://WWW.SAFERCAR.GOV</A> .
Affected vehicles
| Make | Model | Model years |
|---|---|---|
| Thomas Built Buses | HDX | 2009, 2010 |
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Other campaigns involving Thomas Built Buses vehicles
- 2026–2027 Thomas Built Buses Saf-T-Liner EFX2 and 1 other model — Entrance door may fail to open or close when the switch is…
- 2026–2027 Thomas Built Buses Saf-T-Liner HDX2 — Entrance door may fail to open or close when the switch is…
- 2027 Thomas Built Buses Saf-T-Liner HDX2 — Front and mid-body interior joints may have been…
All Thomas Built Buses HDX recalls → · All Thomas Built Buses recalls →
Source: NHTSA recall database, campaign 10V184000. Data last verified Jul 30, 2026.