Re: glovebox rattle
I had a rattle that sounded like it was coming from the glovebox latch pins and latch assembly. When you would slam the door shut you could hear the rattle. Driving on certain road surfaces it would rattle. Driving between 1100 rpm and 1800 rpm with the ECO light on it would rattle. Dealer ordered a new glovebox door and replaced the old one. No rattles since the replacement. Hope this helps.
2011 Jeep Grand Cherokee 4x4 LTD
Mineral Gray-Black/Light Frost Beige
Hemi, 20" Wheels, Luxury Group II
Trailer Tow Group IV, 430N