Hi All, I have a 2015 Tahoe LTZ and I am experiencing the same issues as you. I have a Overhead garage door opener and my range is absolutely pathetic. I can be right against the door and hit the button several times and nothing. My previous 2 other vehicles (2008 Trailblazer and a 1998 Jimmy) had great range, about a block. I tried all the tricks to extend the range and nothing worked... nothing! Well this past week, my opener bit the dust and I purchased a Chamberlain WD1000WF opener. After installing it, I reluctantly set up the homelink, being content with just using the one that came with it. Well after I set up, I tried it out and was surprised my range increased dramatically... more than my previous cars. Well today I gave it a real test and tried it from over 2 blocks away (straight line of site, no obstructions) and to my shock.... IT OPENED!!!! I hope this helps some of you out there as I was very frustrated with having an awesome vehicle that could not open a door unless I drove through it!!!! 😉