When I enter in a tunnel, my lights take about 1 minute to "detect" the darkness and light on.

How can I adjust this ?

I'm not aware that you can. The computer continually calculates a running average from the light sensor on dash, so that the headlights don't turn on and off every time you go under a tree in daylight. I've never timed mine, but I don't think mine is a full minute. It might be something like 10 or 15 seconds, which can be very long when you're plunged into a tunnel. Our tunnels all have lights which very with intensity depending on how far in the tunnel you are.

You can always manually turn them on, when you need them (which obviously defeats the point of 'automatic' headlights).

Could it be the result of validating the "observe the time" in gps menu options ?
I was thinking that it could introduce a delay in computer init ?

I think a simpler solution would be to just manually turn the lights on. Not trying to be a smart ass, but I dont think there is any way around unless your down to modify over a ''small'' issue.

exactly right. i would rather manually turn them on for isolated incidents than have them be flashing on and off constantly. i think mine is around 10 seconds as well...since somedays on my commute to/from work if i sit under an over pass for that amount of time they will click on when the weather is just right...

on and off with hid's is also not good. since the components require restrike and cooling time for gasses, constant flicker at short intervals (same with street lights) decreases life and eventually results in failure. i know a cars components are different, but the principles are pretty common.

Because it is a safety feature I doubt you will be able to tinker with it.

Of course, I'm ok with all of you, but...
My brother has a S-Type Jaguar. When we enter together in the same tunnel, his lights turn on in around 5 seconds... mine are off.
His lights are also not blinking like a christmas tree, and I can tell it, because, we often drive together in the same directions.
So, perhaps it is not a problem of delay or sensitivity... perhaps it's only that, on Jag', the analysis of darkness is "straight ahead", instead of vertical to the sky on CTS ?

Actually, you CAN adjust that time in your menu. It ranges from 15 seconds to up some minutes? Mine is set to 15 seconds. It's somewhere in your personal settings...

Actually, you CAN adjust that time in your menu. It ranges from 15 seconds to up some minutes? Mine is set to 15 seconds. It's somewhere in your personal settings...

I may be mistaken, but I think you are referring to twilight sentinal which is how long your headlights stay on when you turn the car off at night.

on and off with hid's is also not good. since the components require restrike and cooling time for gasses, constant flicker at short intervals (same with street lights) decreases life and eventually results in failure. i know a cars components are different, but the principles are pretty common.

This is very true...

I just browsed my manual and could find no opportunity to make this sort of adjustment. Maybe the dealer can Type II tool.

I may be mistaken, but I think you are referring to twilight sentinal which is how long your headlights stay on when you turn the car off at night.

uhuh... that's the same time that adjusts the reaction time of the lights to turn on. Even in my 70 Eldorado the sentinel works like that...

Hmmm I'm not sure that its does work that way. My auto shut off is set for about 30 seconds and my light senor works faster then that when in a tunnel for example.

Alright, might be my imagination. Don't want to spread wrong info...
But it does work like that on my Eldorado

I timed mine yesterday (in and out of the garage). Mine automatically switch at 20 seconds. It would be nice if it was slightly lower (or adjustable), but it doesn't bother me enough to be a problem.

Hummm !
I think I unvolontary created a problem with my question...
Sorry for that ( lol)

http://i21.ebayimg.com/04/i/05/a4/bb/d2_1.JPG

aaaahhh, the Lambo-doors.
To be honoust: not my thing. But it is definately something...

so much hatred towards the doors...honestly, i think it's kinda neat. probably very impractical but it's pretty unique and a great way to quickly burn 2000-2500 real fast...

so much hatred towards the doors...honestly, i think it's kinda neat. probably very impractical but it's pretty unique and a great way to quickly burn 2000-2500 real fast...
Actually not $2-$2.5K:

http://cgi.ebay.com/ebaymotors/CADILLAC-CTS-03-04-05-VERTICAL-BOLT-ON-LAMBO-DOOR-KIT_W0QQcmdZViewItemQQcategoryZ33642QQitemZ8031572 467QQrdZ1QQsspagenameZWDVW

Now getting my wife to operate them. Well. That's another matter altogether!

wow, thats way cheaper than i thought. i figured you'd have to get it hooked up at a shop, so the labor would add about the same as the parts...making the price tag climb quick...

haha, maybe i should do it...then you guys would rip on me...

wow, thats way cheaper than i thought. i figured you'd have to get it hooked up at a shop, so the labor would add about the same as the parts...making the price tag climb quick...
haha, maybe i should do it...then you guys would rip on me...
Something tells me that they were slooooooow movers and the guy probably wants to unload them. Can't go wrong on the price, even if you just tucked them away in your garage.

wow, thats way cheaper than i thought. i figured you'd have to get it hooked up at a shop, so the labor would add about the same as the parts...making the price tag climb quick...
haha, maybe i should do it...then you guys would rip on me...
please...no:alchi:

no kidding...i mean if you could get 1 for 500 or 550 shipped, i think that'd be a hell of a deal. especially if they worked as simple as he claims...

please...no:alchi:

Caddy Man, don't make me put you in your place again! i know, i know...wet pavement and all...

Caddy Man, don't make me put you in your place again! i know, i know...wet pavement and all...
i swear...it was the wet pavement! :burn:

So... are you "shocking" on this idea to put Lambo doors on a CTS ?
PS : I bought mine 20 days ago to this eBayer, and still did not receive them.
I will tell you when received... hummmm... very long delays... why ?

I confirm : don't run to this guy on eBay (see above) : I ordered and paid since 4th january, and he didn't ship nothing. He wrote me last week that kit would be shipped tomorrow... wait & see !