2008 Cadillac CTS Owner's Manual - Page 157

Exterior Lighting Battery Saver The exterior lamps turn off about 10 minutes after the ignition is turned to LOCK/OFF, if the parking lamps or headlamps have been left on. This protects against draining the battery. The battery saver does not work if the headlamps are turned on after the ignition is turned to LOCK/OFF. To keep the lamps on for more than 10 minutes, turn the lamps back on with the exterior lamp control. Entry Lighting The entry lighting system turns on the reading and dome lamps and the backlighting to the exterior lamp control, when a door is opened or if the transmitter unlock button is pressed. If activated by the transmitter, the lighting stays on for about 25 seconds. The entry lighting system uses the light sensor on the instrument panel; so it must be dark outside in order for the lamps to turn on. The lamps turn off about 25 seconds after the last door is closed. They dim then turn off if the ignition key is turned to ON/RUN. They immediately turn off if the power locks are used. Instrument Panel Brightness The knob with this symbol on it is located on the instrument panel to the left of the steering column. Parade Dimming This feature does not let the instrument panel backlight dim during daylight hours while the key is in the ignition and the headlamps are on. Parade dimming automatically works with the light sensor, located on top of the dashboard. If it is dark enough outside and the parking lamps are on, the backlight on the instrument panel can be adjusted by turning the instrument panel brightness knob clockwise or counterclockwise to brighten or dim the lighting. See Instrument Panel Brightness on page 3-19. Turn the knob clockwise to brighten the lights or counterclockwise to dim them. Turn the knob completely clockwise to turn on the interior lamps. 3-19