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Home >> GMC >> 2021 >> Yukon AT4 >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel And Console Trim - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> Symptoms-Instrument Panel and Console Trim >> Notes

Symptoms-Instrument Panel and Console Trim: Notes

Important Preliminary Checks Before Starting:

  1. Perform the Diagnostic System Check - Vehicle before using the symptom tables in order to verify that all of the following are true:
    • There are no DTCs set.
    • The control modules can communicate via the serial data link.
  2. Review the cooler box operation or power center console operation in order to familiarize yourself with the system functions. Refer to the following: