School Bus Parking Brake May Fail, Increasing Crash Risk
Daimler Trucks is recalling 267 school buses because the parking brake activation switch may fail to set the parking brake, increasing the risk of unintended vehicle movement and crashes.
What this means for you
Real risk of harm even if no illness or injury has been reported yet. Stop using the product and follow the agency's guidance.
Our severity reasoning: No deaths, injuries, or illnesses have been reported. The parking brake failure presents a risk of unintended vehicle movement and crashes in a school bus, which is a risk-of-harm situation where injury has not yet been reported, warranting a High severity score per the rubric.
Plain-English summary
Daimler Trucks North America, LLC (DTNA) is recalling certain 2021 and 2022 Thomas Built C2 Saf-T-Liner school buses, identified by NHTSA recall number 21V547000.
The parking brake activation switch may fail to set the parking brake. If the brake fails to engage, the vehicle may move unintentionally, increasing the risk of a crash.
A total of 267 vehicles are affected. DTNA will update the Dash Electronic Control Unit (DECU) software at no charge to address this issue. Owners should contact DTNA customer service at 1-800-547-0712 to schedule the update. Owner notification letters were mailed on September 14, 2021. For more information, consumers may contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153) or visit www.nhtsa.gov.
The recalled product
- Product
- THOMAS BUILT BUSES SAF-T-LINER C2
- Brand
- THOMAS BUILT BUSES
- Manufacturer
- Daimler Trucks North America, LLC
- Category
- Vehicle — School Bus
- Affected units
- 267
Is your product affected?
Check your packaging against the codes below. If any of them match, the product is part of this recall.
Model numbers (1)
- SAF-T-LINER C2
Distribution
Distributed nationwide across the United States.
Related recalls
Same brand · THOMAS BUILT BUSES
- Severe
- Severe
- Severe
- HighThomas Built School Bus Recall for Door Switch Failure
NHTSA · 2026-06-26
- HighThomas Built Buses Recalls SAF-T-LINER HDX2 Due to Door Malfunction
NHTSA · 2026-06-26
Same manufacturer · Daimler Trucks North America, LLC
See all →- Severe
- HighDaimler Trucks Recalls Aftermarket Grote Headlamps Due to Software Error
NHTSA · 2026-08-03
- HighFreightliner Trucks Recalled for Low Beam Headlight Software Error
NHTSA · 2026-07-22
Same hazard · parking brake failure
See all →- High2024–2027 Volvo VNL (4) trucks recalled for inadequate parking brake
NHTSA · 2026-02-10
- SevereInternational Recalls 2025-2026 IC Bus CECB Due to Parking Brake Defect
NHTSA · 2025-09-25
- HighChrysler 300 and Dodge vehicles recalled for parking brake defect
NHTSA · 2024-02-15
- SevereXos Recalls 2021-2022 SV05 and SA01 Vehicles for Parking Brake Defect
NHTSA · 2023-11-10
- HighRicky Powersports Youth ATVs recalled for safety standard violations
CPSC · 2023-05-04