2008 Cadillac XLR-V Owner's Manual - Page 156

The HUD controls are located to the left of the steering wheel. Be sure to continue scanning your displays, controls and driving environment just as you would in a vehicle without HUD. If you never look at your instrument panel cluster, you may not see something important, such as a warning light. Under important warning conditions, the CHECK GAGES message will display in the HUD. View your Driver Information Center (DIC) for more information. +!- (Brightness): This button is used to adjust the brightness of the HUD and the instrument panel cluster. DIMMER: This button is used to select the HUD or the instrument panel cluster to adjust the brightness. HUD: This button is used to adjust the vertical position of the HUD display. 3-34