Service VME - Elimination of Sunshade Dimmer Switch

When servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.

All Chevrolet, GMC and Cadillac vehicles mentioned have had a running production change that eliminates the sunshade dimmer switch. Starting with vehicles built after March 5, 2002, the sunshade dimmer switch has been eliminated. The sunshade light will have on/off functionality only. Dealer warranty claims for replacing the sunshade unnecessarily should not be submitted.

Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance. This diagnostic approach was developed for the vehicle with the VIN you entered and should not be automatically be used for other vehicles with similar symptoms.