The automatic headlights wont shut off at night time when shutting off the car

Are you talking about headlights on as daytime running lights, or on automatically at night? Different modules are involved depending on which case.

most all newer vechicle when turn off ignition.light will turn off automatically.only time use manual headlight switch when malfunction in the automatic lights not turning on manual light design just get you home.

Hi Bird, This sounds to be a problem with a burned or sticking head light relay. Just try replacing it. Regards John

COULD BE FAULTY DRL HEAD LIGHT RELAYS OR FAULTY DIMMER SWITCH.SINCE HEADLIGHTS TURN ON AUTOMATIC.TRY USING MANUAL HEAD LIGHT SWITCH ON TURN SIGNAL SWITCH LEVER SEE IF HEADLIGHTS STAY ON IF LIGHTS STAYS ON YOU HAVE FAULTY DRL HEADLIGHT RELAY.IF LIGHTS STILL FLICKER OFF.YOU HAVE BAD DIMMER SWITCH.

Are you sure there not running in daytime running light, when you think high beams are on

Also, there is sensor on the dash, usally on the speaker grate, that senses night and day. In the daytime your headlights will automatically come on when your car is in drive, and be on the high beam bulb, but dimmer than regular. At night, or in low light conditions, your lights will automatically switch from daytime lights to regular low beams. And yes, even when your switch on the dashis turned off, your lights work automatically.

To turn of the auto setting, just push the override button for your dome light, in and out 3 times, you should hear a chime, and your lights should shut off. This setting resets everytime you shut your vehicle off. Or to turn the auto setting back on, push the over ride button 3 more times.

I have a 1997 cadillac deville that has both 'daytime running lamps' when put into gear and 'twilight sentinel' which turns the headlamps and parking lamps on at night, and goes off during the day or when it is bright enough.

There is an adjustable delay for the twilight sentinel to turn the headlights off after the ignition key is removed and it is night time.
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I had the 'daytime running lamps' installed on a 1990 Cadillac Deville that turns the headlamps only on when the ignition key is switched to on with an aftermarket module. The headlamps are about 70% or so as bright as the regular twiilight sentinel headlamps and parking lights and are designed to go on during the day.

The twilight sentinel overrides this feature when it gets dark outside.

I had the daytime running lamps installed by an auto electric shop that specializes in electrical systems, alarms, stereos, etc.

Does this help?

you have day time running lights you are supposed to manualy turn them on at night. if you dont manually turn them on,on most cars the tail lights are not illuminated the automatic headlamps only turn the head lamps on. and they are controlled by the sensor located in the middle of your dash board

must of this vehicles with automatic headlight systems, lights will shut down or turns off after few minutes giving driver time to walk to a secure place, is it possible lights won't turn off at all, you must have problem with headlamp delay system

Yes