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Human Machine Interface Control Module Replacement

WARNING: This page is about a different car, the 2019 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
GM4406947Courtesy of GENERAL MOTORS COMPANY
Callout Component Name
Preliminary Procedure 
Radio Bracket Replacement (Except IOU) , or Radio Bracket Replacement (IOU) 
1 Human Machine Interface Control Module

Procedure

  1. Release the retaining tab.
  2. Disconnect the electrical connectors.
  3. Perform the necessary programming and setup procedure:Control Module References