2004 Chevrolet Corvette Owner's Manual - Page 128

Headlamps Doors You can open the doors manually using the knob next to the headlamp assembly. Turn the knob counterclockwise until the doors are open. Turn the knob clockwise to close the doors manually. The headlamp doors should be open when driving in icy or snowy conditions to prevent the doors from freezing closed and when washing the vehicle to help clean the headlamps. Notice: If the hood comes into contact with the headlamp doors when you raise the hood, you could damage the hood and/or the headlamp doors. Always close the headlamp doors before opening the hood. The headlamp doors are designed to open when you turn the headlamps on, and close when you turn the headlamps and parking lamps off. If you turn the headlamps on, then turn back to the parking lamps setting, the headlamp doors will stay open. 3-14