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Thomas Built Buses Saf-T-Liner C2 Recall 22V438: Engine May Shut Down Unexpectedly, Raising Crash Risk

NHTSA campaign 22V438, reported June 20, 2022, 461 vehicles potentially affected.

What this recall means for you

Certain 2020-2023 Thomas Built Saf-T-Liner C2 school buses with 8.8L LPG engines may set a fault code in the engine control module (ECM). This can cause the engine to shut down unexpectedly while the bus is operating.

An unexpected shutdown can increase the risk of a crash. If a disabled bus must be evacuated in uncontrolled traffic, passengers face a higher risk of injury.

Authorized dealers will update the ECM software free of charge. Owner notification letters were mailed October 28, 2022. You can also contact Daimler Trucks North America customer service at 1-800-547-0712 (recall FL942), and check your VIN for any open recalls.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 22V438Daimler Trucks North America, LLC
Component
ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
Problem
Daimler Trucks North America, LLC (DTNA) is recalling certain 2020-2023 Thomas Built C2 Saf-T-Liner school buses equipped with 8.8L LPG engines. The engine control module (ECM) may set a fault code that results in an unexpected engine shut down.
Risk
Unexpected engine shut down can increase the risk of a crash. Additionally, a disabled school bus may require an evacuation procedure in an uncontrolled traffic situation, increasing the risk of injury to passengers.
Remedy
Dealers will update the ECM software, free of charge. Owner notification letters were mailed October 28, 2022. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL942.
Notes
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

Thomas Built Buses Saf-T-Liner C22020202120222023