GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 1999 🢒 Eighty Eight 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Twilight Sentinel Circuit Description

Twilight Sentinel Circuit Description Buick

The twilight sentinel keeps the lamps on for a delay period (3-180 seconds) under the following conditions:

    • The vehicle is in the PARK position.
    • The ambient light sensor indicates darkness.
    • The ignition switch is turned to the OFF position.

You may turn OFF the twilight sentinel manually. The twilight sentinel always has a minimum delay under the following conditions:

    • The vehicle is in the PARK position.
    • The ambient light sensor indicates darkness.
    • The ignition switch is turned to the OFF position.
    • The switch is released.

The twilight sentinel feature does not affect the operation of the daytime running lamps (DRL).

Twilight Sentinel Circuit Description Oldsmobile/Pontiac

The twilight sentinel keeps the lamps on for a delay period (3-130 seconds) under the following conditions:

    • The twilight switch is in the ON position.
    • The vehicle is in PARK.
    • The ambient light sensor indicates darkness.
    • The ignition switch is turned to the OFF position.

The twilight sentinel feature does not affect the operation of the daytime running lights (DRL).