2009 Chevrolet Colorado Owner's Manual - Page 146

Instrument Panel Brightness D (Instrument Panel Lights): Turn the thumbwheel up or down to brighten or dim the instrument panel lights and the radio display. The instrument panel lights, cluster, and radio display do not dim to complete darkness. The instrument panel light brightness control will only work if the headlamps or parking lamps are on. See Exterior Lamps on page 3-13. Reading Lamps Press the lens on the lamps to turn each reading lamp on or off. These lamps will not come on with the dome lamps. Dome Lamp Override The dome lamp override button is located below the exterior lamps control. Dome Lamp The dome lamps, located in the front and cargo area of the vehicle, come on when any door is opened. Turn the dome lamps on by turning the thumbwheel, located next to the exterior lamps control, all the way up. In this position, the lamps remain on whether a door is opened or closed. E (Dome Lamp Override): Press this button in to make the dome lamps remain off when the doors are open. To return the lamps to automatic operation, press E again and return it to the out position. Exit Lighting The interior lamps will come on when the key is removed from the ignition. The lamps will not come on if the dome override button is pressed in. 3-16