2015–2018 Thomas Built Buses Minotour Recall: Under-body shut-off solenoid connector that connects to the CNG fuel tank…
NHTSA campaign 21V741000 · Electrical System · filed Sep 23, 2021 · verified Jul 30, 2026
The defect
Daimler Trucks North America, LLC. (DTNA) is recalling certain 2015-2018 Thomas Built Minotour school buses. The under-body shut-off solenoid connector that connects to the CNG fuel tank may corrode, which could result in an electrical short.
The risk
A short at the connector may cause a flame or overheating, increasing the risk of a 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
Dealers will replace the CNG fuel shut-off solenoid, free of charge. Owner notification letters are were mailed February 03, 2022. Owners may contact DTNA's customer service at 1-800-547-0712. DTNA's number for this recall is FL-903.
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Affected vehicles
Related recalls
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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…
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All Thomas Built Buses Minotour recalls → · All Thomas Built Buses recalls →
Source: NHTSA recall database, campaign 21V741000 (manufacturer number FL-903). Data last verified Jul 30, 2026.