The Recall Desk
Our severity:HighNHTSA·22V606000·Announced 2022-08-09

Mack Recalls 2023 MD Trucks Due to Engine Control Module Short-Circuit Risk

Mack Trucks is recalling 2023 MD6/7 trucks because the engine control module may short-circuit, causing unexpected engine shutdowns that increase crash risk.

What this means for you

Our assessment, not the agency’s: severity 3/5 (High).

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: The recall involves a risk-of-harm product (vehicle) where injury has not yet been reported, fitting the High severity criteria for unexpected engine shutdowns increasing crash risk.

Plain-English summary

Mack Trucks, Inc. is recalling certain 2023 MD6/7 trucks. The recall addresses a potential defect in the engine control module (ECM), which may experience an internal short-circuit. This malfunction can result in an unexpected engine shut down while the vehicle is in operation.

An unexpected engine shut down can increase the risk of a crash. The source text does not report any specific injuries or fatalities associated with this defect.

Owners of affected vehicles should contact Mack's customer service at 1-800-866-1177 to schedule a repair. Cummins will replace the ECM free of charge. Owner notification letters were mailed on September 27, 2022. Owners may also contact the NHTSA Vehicle Safety Hotline at 1-888-327-4236.

The recalled product

Product
MACK MD
Brand
MACK
Manufacturer
Mack Trucks, Inc.
Category
Vehicle — Heavy-Duty Truck
Hazard
Affected units
150

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)

  • MD

Distribution

Distributed nationwide across the United States.

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