1993 Buick Park Avenue Owner's Manual - Page 104

Twilight Sentinel (Option) Twilight Sentinel turns your lights on and off by sensing how dark itis outside. To operate it, leave the light switch off and move the Twilight Sentinel control to anyposition but MIN. If you move the control all the way to MAX, your lights will remain on for three minutes after you turn off your engine. If you move the control almost all the way in the lights will go off other direction,so it's just on, the quickly when you turn off your engine. You can change this delay time from only a few seconds to three minutes. Please don'tcover the light sensor. If you cover the sensor, it will read "dark" and your lights will come on. It is on top of the instrument panel, on the driver's side defroster outlets.