1999 Cadillac Catera Owner's Manual - Page 106

yellowblue Fog Lamps Use the fog lamps for better vision in foggy or misty conditions. Press this button to turn the fog lamps on and press the button again to turn the lamps off. (The fog lamps only work when the parking lamps or the low-beam headlamps are on and the ignition is on.) Cornering Lamps The cornering lamps come on when the headlamps or parking lamps are on and you signal a turn. They provide more light for cornering. Twilight SentinelR This feature is below the lamp control dial on the left side of the instrument panel. It automatically switches the parking lamps and low-beam headlamps on and off by sensing how dark it is outside. This light on the instrument panel will come on when the fog lamp button is pressed. To operate the Twilight Sentinel, the ignition must be in ON or START and the Twilight Sentinel must be turned on by pressing the OFF button (an indicator light in the button will be off when the Twilight Sentinel is activated). If the system senses it is dark outside, the lamps will turn on. The lamps turn off when the system detects that it is bright outside. If you turn on the high-beam headlamps, the fog lamps will turn off. They'll turn back on again when you switch to low-beam headlamps. 2-44