1998 Chevrolet Corvette Owner's Manual - Page 105

Interior Lamps Instrument Panel Brightness Control This button controls the brightness of your instrument panel lights when your headlamps or parking lamps are on. Courtesy Lamps When any door or thehatch/trunk lid is opened, the interior lamps will go on (unless it'sbright outside). The lamps will stay on forabout 30 seconds or until you turn on the ignition. You can also turn on the courtesylamps by turning the interior brightness control button all the way to the right. Be sure not to have this knob turnedall the way down with the lamps on during the day. Your Driver Information Center (DIC) may not be visible. I s h and release the button and it will pop out.Turn the button clockwise (to the right) to brighten the lights or counterclockwise (to the left) to dim them. The instrument panel brightness knob hasan added feature called Parade Mode to assist you in seeing certain instrument panel controls if your headlamps are on in the daylight. Right before turning the courtesy lamps onby turning the button all the way to the right, the radio, Driver Information Center (DIC) display and heating and air conditioning controls will come on at their maximum brightness. This will occur only with the parking lamps or headlamps on. 2-52