The defect
Mack Trucks, Inc. (Mack) is recalling certain 2023 MD6/7 trucks. The engine control module (ECM) may experience an internal short-circuit, which can result in an unexpected engine shut down.
The risk
An unexpected engine shut down can increase the risk of a crash.
The remedy
Cummins will replace the ECM, free of charge. Owner notification letters were mailed on September 27, 2022. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0438.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Mack MD | 2023 |
Components: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Mack MD | 2023 | 1 | 2 |
Other engine and engine cooling recalls in 2022
44 of the 933 recall campaigns reported to NHTSA in 2022 concerned the engine and engine cooling; Mack Trucks, Inc. filed 118 campaigns in all.
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NHTSA recalls (public domain) · all recalls of 2022