Headlights Always On

[Jetskier77]

That's odd, I could swear the defroster duct completely blocks access to the sensor through the radio hole.
You did this on a gmt900??

So sorry for the lack of specifics... this was on a 2005 suburban

 

[EddieC]

Resurrecting this to ask an obscure question.
Would having a burned out daylight running light cause the headlights take over the function and come on every time the truck is started?

Looking back at my records, both the headlight switch and ambient light sensor are both only about a year old and oem replacements. I imagine they could fail but it seems less lightly since the originals lasted about 18 years.

 

[EddieC]

ttt

 

[mikez71]

I have two burned out DRL's now, bought it with one burned out DRL.
Mine has never activated headlights to compensate for burned out DRL's that I'm aware of...

 

[EddieC]

I have two burned out DRL's now, bought it with one burned out DRL.
Mine has never activated headlights to compensate for burned out DRL's that I'm aware of...

Ah.
A mystery.
I have more pressing things to do than pull the bumper cover just for a light bulb. Come on Chevy!