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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 331 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> DTC B1277: Microphone 1 Input Signal Circuit (IO5/IO6) >> Action Taken When the DTC Sets

Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.

The voice recognition system malfunctions or is inoperative.

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