Engine: engine control module (ecu/ecm)Recall 22V-553 · Thomas Built Buses vehicles

Daimler Trucks North America, LLC recall 22V-553 covers 71 Thomas Built Buses vehicles for a engine: engine control module (ecu/ecm) problem, reported to NHTSA on July 29, 2022. The manufacturer's latest report (2024 Q2) shows 79% of affected vehicles repaired.

79%
Vehicles repaired56 of 71 · 2024 Q2
Vehicles affected712 models
ReportedJul 29, 2022Owners notified Sep 27, 2022
Complaints since0Same system, after the recall

Source: NHTSA recall 22V553000 and manufacturer quarterly reports. Started by the manufacturer.

What's wrong

The problem

Daimler Trucks North America, LLC (DTNA) is recalling certain 2023 Thomas Built Saf-T-Liner HDX and Saf-T-Liner C2 school buses. The engine control module (ECM) may experience an internal short-circuit, which can result 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

Cummins will replace the ECM, free of charge. Owner notification letters are expected to be mailed September 26, 2022. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-949.

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

79%repaired

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

0%50%100%2022 Q32024 Q2