Engine: engine control module (ecu/ecm)Recall 22V-438 · 2020–2023 Thomas Built Buses Saf-t-liner C2

Daimler Trucks North America, LLC recall 22V-438 covers 461 2020–2023 Thomas Built Buses Saf-t-liner C2 for a engine: engine control module (ecu/ecm) problem, reported to NHTSA on June 20, 2022. The manufacturer's latest report (2024 Q3) shows 95% of affected vehicles repaired.

95%
Vehicles repaired438 of 461 · 2024 Q3
Vehicles affected4611 model
ReportedJun 20, 2022Owners notified Oct 28, 2022
Complaints since0Same system, after the recall

Source: NHTSA recall 22V438000 and manufacturer quarterly reports. Started by the manufacturer.

What's wrong

The 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.

The 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.

What to do

The fix

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.

Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.

Repair progress

How fast cars are being fixed

95%repaired

Share of affected vehicles repaired in each quarterly report the manufacturer filed with NHTSA.

0%50%100%2022 Q42024 Q3
1 model

Vehicles in this recall