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January 19, 2022 Service bulletin

Chassis Equipped With An AMT-F (I-Shift, mDrive)

Mack technical service bulletin KC-398 for 2018-2019 Mack Anthem (An), 2018-2019 Mack Granite (GR) and 2018 Mack Gu and others.

Bulletin number
KC-398
Component
Power train
Summary
Chassis Equipped With An AMT-F (I-Shift, mDrive) - Idle Drive Function Activates When Vehicle Is Reversing/Backing Up At Low Speed; Information And Repair - Build Date Beginning Of Production 2017 To February 2018

Owners of these vehicles have filed 2 complaints in the transmission category.

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