INFO ON TWILIGHT SENTINEL TIME-OUT DELAY 1 1/2 MIN. MAX

SUBJECT: INFORMATION ON TWILIGHT SENTINEL TIME-OUT DELAY ON 1990-1991 DE VILLES, FLEETWOODS, AND BROUGHAMS

The twilight sentinel system is designed to delay headlamp turn off from a few seconds to approximately 1-1/2 minutes after the ignition is turned off. References to a maximum delay of more than 1-1/2 minutes in service or owner information is incorrect.

Do not attempt to repair the system to achieve a delay longer than 1-1/2 minutes.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.