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NHTSA Recall 22V606000: Engine control module (ecu/ecm) (engine and engine cooling)

Mack Trucks, Inc. reported this safety recall to NHTSA on , covering an estimated 150 vehicles. It affects 2023 Mack Md.

150
vehicles potentially affected
1
model affected
2022
owners notified (September 27)
NHTSA campaign22V606000
Manufacturer campaignSC0438
ComponentENGINE AND ENGINE COOLING › ENGINE › ENGINE CONTROL MODULE (ECU/ECM)
Report receivedAugust 9, 2022
Owner notificationSeptember 27, 2022
Initiated byManufacturer

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.

Safety risk

An unexpected engine shut down can increase the risk of a crash.

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.

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.

Vehicles covered by recall 22V606000

Make and modelModel years
Mack Md2023

Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.