This is how you do it on the 2013. I imagine it is the sameish.
First, you have to pull the rubber gasket up off of the air intake on top of the lamp. There is a little green friction plug holding it on. Once that is done, unclip the two metal clips on the right side of the air filter box. Lift up the cover, pull out the filter, pull the whole filter box up and out while the cover is bent up and out of the way (still attached to flex hose). It is just held on by 3 rubber friction plugs. You can now reach in and access the driver side DRL/Highbeam. Put everything back in the reverse order. Push down on the air filter box bottom and wiggle around until the rubber friction plugs are back in place.
Should only take a few minutes.
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2013 Jeep Grand Cherokee Limited 5.7L V8 Hemi
AngelEyes LED Headlamps With LED DRL & OPT7 LED Lowbeams
K&N 63-1563 AirCharger Performance Air Intake
Quadratec SRT Rims 20 x 9 Gunmetal Grey 265/50R-20 Michelin Premier LTX SL All Season Tires