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Serial Data Gateway Module Replacement

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2018 GMC Sierra 3500 HD, 2018 GMC Sierra 2500 HD, 2018 GMC Sierra 1500, 2018 Chevrolet Silverado 3500 HD, and 2018 Chevrolet Silverado 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Serial Data Gateway Module Component Location
GM4487734Courtesy of GENERAL MOTORS COMPANY
Callout Component Name
Preliminary Procedure 
Instrument Panel Knee Bolster Replacement
1 Serial Data Gateway Module

Procedure

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