2021 Thomas Built Buses Saf-T-Liner C2 Recall: Tire valve stem extension may be damaged by contact with disc brake caliper
NHTSA campaign 21V207000 · Tires · filed Mar 24, 2021 · verified Jul 30, 2026
The defect
Daimler Trucks North America, LLC (DTNA) is recalling certain 2021 Thomas Built C2 Saf-T-Liner School Buses. The tire valve stem extension may be damaged by contact with disc brake caliper.
The risk
A damaged tire valve stem may cause a loss of tire pressure, increasing the risk of a crash. A disabled bus may require passengers to transfer to a different bus on the side of the road, increasing the risk of injury.
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 dealers will replace the valve stems, free of charge. This recall is expected to begin on May 22, 2021. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-882.
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.safercar.gov.
Affected vehicles
| Make | Model | Model years |
|---|---|---|
| Thomas Built Buses | Saf-T-Liner C2 | 2021 |
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All Thomas Built Buses Saf-T-Liner C2 recalls → · All Thomas Built Buses recalls →
Source: NHTSA recall database, campaign 21V207000 (manufacturer number FL-882). Data last verified Jul 30, 2026.