16-18 Sierra Turn Signal DRL Override Harness

This harness is for the 2016-2018 GMC half ton Sierra's that have the LED headlights with the incorporated LED turn signal.  Have you noticed that when you use your turn signals, during the day, that the DRL actually goes off.  This harness overrides that feature and allows for the DRL to stay on when the signal is used. Harness is plug and play.  For use with pictured headlight only.   We now also have the ability to allow the "C" LED to stay the same brightness at night as it is during the day.  Please select the appropriate option for your personal preference.

Will only work on the full LED headlights

PLEASE PROVIDE YOUR VIN # AT CHECKOUT AND WE WILL VERIFY THE MODEL OF YOUR CURRENT VEHICLE

 INSTALLATION INSTRUCTIONS-CLICK HERE