99 buick century just put down 1050 and 70 a week for 52vweeks 179k and warrenty up to200k got hurt real bad with that deal smh
but the question is how do I turn off front headlights at night while parked it'* kind of aggravating waking up the house when I pull up at night after work and sit in the car for a few minutes before I go in?

In Park, apply e-brake....now you can continue your stalking in the dark...

I'm interested to hear if this works. My 1997 LeSabre with automatic lights doesn't care about the e-brake. If it'* dark and the ignition is on, the lights are on.

Fortunately they left an easter egg control that I can use instead, unless I put the car in gear.

Cathedral, turn your key to off/lock........ apply ebrake....now start car.....auto headlights should be off....

Sorry, tried that. If it is dark and ignition is or gets turned on, lights are on, e-brake or not.

Strange, on the Park Ave there is a sentinel slider control that will turn them off.
Does anything happen with the round headlight control turned all the way left?
In the Buick manual see page 2-38 onward...
The owners manual for a 99 is here:http://www.vadengmpp.com/owners-manu...ck-Century.pdf

Yeah the easter egg control I was talking about is the slider. If you're in Park (doesn't work in R, N, D, 3, 2, and 1) and you momentary press it to the left, all the lights will go off as if it is daytime. The moment you select anything else with the transmission selector it forgets that you ever momentary-pressed it.

Alas mine doesn't have a sensible round headlight control. It has the silly tactile-camouflaged buttons integrated into the driver'* door trim, complete with status indicators that cannot be seen unless it is mostly-dark out, and no indication that they are manually activated until you turn your car off after the daytime headlight zone.

The ebrake procedure works on the Century....Cathedral, this is from your owner'* manual:

Yeah, the Century is probably programmed a bit differently. I just went out and covered daylight sensor and tried the emergency brake just to be super duper sure. It doesn't turn the driving lights off.

Fun thing is: I just discovered my DRLs appear to be out. I know the high beams work so I'll have to figure out what'* going on with that. Probably a relay or something.

The manual has an error in it. It says: "When it is dark enough outside, your low-beam headlamps will come on."

It should say something like: "When it is dark enough outside, your nighttime driving lights will come on, and the headlights will be set to low-beam or high-beam depending on the selection currently chosen by the Turn Signal/Multifunction Lever."

Try Checking this I done this on my 2001 it says 2000-2002 but still may work on autoheadlights I have done all of below to my 2001 the 4700ohm resistor worked great for my auto Headlights they are no more now I turn them on with the headlight switch when I want them on now love it

2000-2002 Buick Century

Locate Body control Module (BCM). This unit is a black box approximately 6" square and 1-1/2" thick with 4 connectors entering one end. Hunting with the door open and key in the ignition, follow your ears to the chime inside. On the 2000-2002 Buick Century, it resides to the left of the steering column, right above your left foot. There is a bump in the fuzzy trim panel that covers the under dash area that gives clearance to the BCM wiring harness. The trim panel does not have to be removed completely to get in far enough to work. Pull out a couple of the panel retainers and work the left end down and back until you have working room. Those panel retaining fasteners are a push in "Christmas tree" type and can be difficult to remove. Persevere, this is the hardest part, The actual mods are easy.
The 4 connectors should now be visible almost even with the bottom of the dash. The connectors are color coded for identification. The first connector is C1, and is blue. We will be working with 4 out of the 7 wires in this connector. Locate the light blue, light blue w/white stripe, dark blue, and dark blue w/white stripe. The white striped wires are the front left and right feeds from the trun signal switch. The plain color wires go to the front left and right turn signal lamps. Very simply, cut all 4 wires about an inch from the connector and separately insulate the wires from the connector. Splice (and insulate) the like colors together that go into the harness. Dark blue to dark blue w/white, and light blue to light blue w/ white stripe. This removes the DRL function from the front turn signals.
The second connector is C2, and is purple. We will be working with only 2 of the 14 wires in this connector. Locate the yellow w/black stripe, and immediately adjacent to that, find the light green w/black stripe. These two wires connect to the ambient light sensor. Cut these two wires about an inch from where they emerge from the harness. Connect a 4700 Ohm resistor (1/4 watt is fine) across the wires from the connector, and insulate. This makes the BCM stay in the daylight mode, and disables the automatic headlight function.
Test your work. Check operation of turn signals and headlights. Replace trim panel and congratulate yourself for a job well done.




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