Recall 21V945 affects 1,218 2022 Thomas Built Buses Saf-T-Liner C2 school buses for gas-pedal floor-mat interference. Free repair at a franchised Thomas Built Buses dealer.
Thomas Built Buses is recalling 1,218 2022 Saf-T-Liner C2 school buses because a misaligned gas pedal can wear through the floor mat and become trapped. A trapped pedal prevents expected deceleration when the driver lifts off the gas, causes unintended acceleration, and raises crash risk; Thomas Built Buses dealers will complete the repair free of charge.
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What's wrong?
The accelerator pedal on the 2022 Thomas Built Buses Saf-T-Liner C2 is the driver's speed control. Pressing it tells the electronic accelerator control to request engine power, and releasing it should let the pedal return so the bus slows when the driver eases off. The floor mat under that pedal also has to stay clear of the pedal's travel.
On affected buses, the accelerator pedal is misaligned. As the pedal moves, it rubs the floor mat and wears into it. Over time, that wear can make a hole or edge in the mat that traps the pedal in an off-idle position, meaning the bus keeps receiving throttle input after the driver expects the pedal to return.
Operators can see the warning sign during a pre-trip or post-trip inspection. Look directly under the accelerator pedal for wear marks or a hole in the floor mat.
Who's affected?
Both listed components point to the same electronic accelerator control assembly.
| 2022 Thomas Built Buses Saf-T-Liner C2 | Floor mat |
|---|---|
| 2022 Thomas Built Buses Saf-T-Liner C2 | Accelerator pedal |
| Units affected | 1,218 |
| Field incidents | NHTSA has logged no field incidents to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific bus is included.
What's the safety risk?
A trapped gas pedal can keep the bus from slowing as expected when the driver lifts off the gas, causing unintended acceleration and increasing crash risk. During inspections, look for wear marks or a hole in the floor mat under the accelerator pedal. Schedule the inspection and repair soon. Repair is free at any franchised Thomas Built Buses dealer.
What should I do?
- Check your VIN to confirm your 2022 Thomas Built Buses Saf-T-Liner C2 is included in this recall.
- Contact a franchised Thomas Built Buses dealer to schedule the free gas pedal assembly inspection and replacement that prevents the pedal from being trapped by the floor mat.
- Bring the recall notice if you have it. If not, reference recall number 21V945 and DTNA recall FL913 when you call.
- Drive cautiously until the repair is complete. Leave extra room to stop and stop driving if the accelerator does not release normally.
- Call Thomas Built Buses customer service at 1-800-547-0712 with questions about the recall or dealer scheduling.
What happens at the repair
At the dealer, a Thomas Built Buses technician inspects the gas pedal assembly and checks whether the pedal is misaligned or contacting the floor mat. If the assembly shows the condition covered by the recall, the technician replaces the gas pedal assembly as needed. Parts and labor are covered, and the recall repair is free now. When you schedule service, tell the dealer this is recall 21V945 for the 2022 Saf-T-Liner C2 gas pedal assembly so the service desk can route the bus to the correct repair.
Timeline
| December 8, 2021 | NHTSA published the recall |
|---|---|
| February 4, 2022 | Owner notification mailed |
| February 5, 2022 | Dealer notification began |
| February 5, 2022 | Dealer notification ended |
| February 5, 2022 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 21V945?
Recall 21V945 covers 1,218 2022 Thomas Built Buses Saf-T-Liner C2 school buses. The gas pedal can be misaligned, wear a hole in the floor mat, and become trapped. Dealers will inspect and replace the gas pedal assembly as necessary for free.
What should I do if my 2022 Thomas Built Buses Saf-T-Liner C2 is on this recall?
Check your VIN to confirm your specific school bus is included in recall 21V945. If it is, contact a franchised Thomas Built Buses dealer to schedule the inspection and gas-pedal assembly repair. Reference recall number 21V945 or DTNA recall FL913 when you call.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost. For recall 21V945, dealers will inspect the gas pedal assembly and replace it as necessary free of charge.
What is the safety risk?
The safety risk is unintended acceleration. If the gas pedal becomes trapped in the floor mat, the school bus will not slow as expected when the driver lifts their foot from the pedal, increasing crash risk. The dealer repair addresses the pedal assembly.
Who can I call about recall 21V945?
Call DTNA customer service at 1-800-547-0712 or contact a franchised Thomas Built Buses dealer. Ask about recall 21V945 or DTNA recall FL913, then confirm whether the bus needs the gas-pedal assembly inspection and repair.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/21V945000 |
|---|---|
| Thomas Built Buses customer service | 1-800-547-0712 |
| NHTSA recall # | 21V945 |
| NHTSA recall # (full) | 21V945000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Quarterly Report (PDF)
- Download Misc. Document (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Recall Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 20, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →