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07-25-2006, 10:24 PM
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Hummer Veteran
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Join Date: Mar 2006
Location: Prague,Czech Rep.
Posts: 32
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Light sensor on dash - help
Does anyone know where exactly is the daylight sensor for auto lights located on the dashboard ?
I want to cover it permanently, so that the lights are always on (required by law here) - so less hassle for me on the start up.
Thanks
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07-25-2006, 10:37 PM
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Hummer Guru
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Join Date: Sep 2005
Location: fort salonga ny
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Re: Light sensor on dash - help
Quote:
Originally Posted by TomV
Does anyone know where exactly is the daylight sensor for auto lights located on the dashboard ?
I want to cover it permanently, so that the lights are always on (required by law here) - so less hassle for me on the start up.
Thanks
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It the round circle on the dash.
I put a pack of cigs over it when its raining,I leave my lights on auto with the fog lights on. 
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07-25-2006, 11:06 PM
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Hummer Veteran
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Join Date: Mar 2006
Location: Prague,Czech Rep.
Posts: 32
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Re: Light sensor on dash - help
Ahh, the lens-like circle by the passenger pillar, right ?
can?t check the feature now - it?s night now here 
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07-26-2006, 12:59 AM
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Hummer Guru
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Join Date: Jul 2005
Location: Idaho
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Re: Light sensor on dash - help
Shine a flashlight directly into it, and the lights will go off. 
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07-26-2006, 01:41 AM
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Hummer Expert
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Join Date: May 2006
Posts: 616
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Re: Light sensor on dash - help
I think if you unplug the sensor your head lights and running lights will always be on too.
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07-26-2006, 01:42 AM
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Hummer Expert
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Join Date: Oct 2005
Location: somewhere west of north
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Re: Light sensor on dash - help
Quote:
Originally Posted by f5fstop
Shine a flashlight directly into it, and the lights will go off. 
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Be patient, though. I think there's a delay before the computer adjusts the headlights on or off. This is so if you go through a tunnel while the lights are on, they won't turn on right away, or if you are in shade and come through some light, the lights won't turn off right away. Not sure the delay time, maybe 10 seconds?
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07-26-2006, 06:04 AM
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Join Date: Dec 2005
Location: Yakima, Washington
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Re: Light sensor on dash - help
I thought that H3 had daytime lights with switch in "Auto" position. 
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07-26-2006, 10:43 AM
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Join Date: Jul 2005
Location: Idaho
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Re: Light sensor on dash - help
Eldave...yes there is a delay to turn on/off for tunnels and in cases where there are bright lights. I believe the delay for turning off the lights is longer than for turning on the lights (safety).
thedieter...yes, the headlamps are auto. The sensor signals the ambient light to the BCM, when the ambient light goes below a set level, the BCM activates the light, if it goes above a set level, it turns off the lights.
deserth3...unplugging the sensor MIGHT, set a code. The BCM monitors this sensor and no input at all might cause it to set a code to signal the sensor is dead. (I would have to look it up to verify.)
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07-26-2006, 04:31 PM
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Hummer Veteran
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Join Date: Mar 2006
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Re: Light sensor on dash - help
Originally Posted by f5fstop
Shine a flashlight directly into it, and ....
.. kill it for good - thats what I thought your?re gonna say !
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07-26-2006, 04:38 PM
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Hummer Veteran
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Join Date: Mar 2006
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Re: Light sensor on dash - help
Quote:
Originally Posted by thedieter
I thought that H3 had daytime lights with switch in "Auto" position. 
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That?s right, but DRL?s are not enough, we are required here to have headlamps on all the time ( not that bad thing if you ask me - a motorcycle rider  )
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07-26-2006, 05:24 PM
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Hummer Authority
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Join Date: May 2006
Location: Upstate NY
Posts: 1,050
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Re: Light sensor on dash - help
Have always driven with head lights on all the time. Not just DRL. I like added benefit of having the tail lights on as well. Not many people pull out in front of me.
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07-27-2006, 03:29 PM
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Hummer Guru
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Join Date: May 2005
Location: Virginia Beach
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Re: Light sensor on dash - help
makes you more visible, more safe, must be a good thing.. 
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07-27-2006, 03:36 PM
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Hummer Guru
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Join Date: May 2006
Location: florida
Posts: 2,606
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Re: Light sensor on dash - help
Studies show that having your headlights and taillights AND drls on during daytime causes more accidents and are soley responsible for children being born with tails and no belly buttons.
Source: Michael1
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