GM Service Manual Online
For 1990-2009 cars only

This feature allows two different drivers to store and recall their own preferred display mode. The personalization settings displayed on the DIC are determined by the remote keyless entry transmitter used to enter the vehicle. After the unlock button on the remote keyless entry transmitter (if equipped) is pressed and the ignition is in ON, the DIC will display the identified driver. The settings can also be changed by briefly pressing one of the memory buttons located on the driver's door.

The DIC is used to program information for DRIVER #1 and DRIVER #2. The DIC will identify a person as UNKNOWN DRIVER if neither DRIVER #1 nor DRIVER #2 is identified by the system.