2017 Sierra DRL Issue

[Joe Paradise]

Hi all, having an issue with my 2017 Sierra SLT daytime running lights. Currently the left side only comes on if I start the truck with the automatic starter. Otherwise it will not come on. HID, turn signal, fogs all work fine. Right side works fine. Lately I have noticed a little condensation in the lens. This started during a recent cold snap. Coincidence? 

 

Appreciate any insight. Thinking of replacing the headlight control module?

[JimCost2014]

5 hours ago, Joe Paradise said:

Hi all, having an issue with my 2017 Sierra SLT daytime running lights. Currently the left side only comes on if I start the truck with the automatic starter. Otherwise it will not come on. HID, turn signal, fogs all work fine. Right side works fine. Lately I have noticed a little condensation in the lens. This started during a recent cold snap. Coincidence? 

 

Appreciate any insight. Thinking of replacing the headlight control module?

Welcome to the site.

 

If you are still under warranty, I would have a dealership look at it first, rather than guessing and spending money you might not need too.

 

If you have a LED that is failing, you will have to replace the whole headlight.

[Joe Paradise]

Thanks... just to update, out of warranty, trying not to spend $700 on a new headlight. Being that it works fine on the automatic starter, thinking there has to be something else to it?