I have a 2015 yukon slt, 4wd, push button start, recently it decided to not start, I checked for dead battery and it was fine, if I went back to the truck a few minutes later it would start. The problem went away then came back, then while driving the gauges would go dead but backlights would stay lit, then radio went black. When I parked the truck it wouldn’t shut off, finally got it to turn off then it wouldn’t start. Next it went completely dead, with booster pack or charger or cables the truck wouldn’t do anything, no dash, no lights not even a click. The battery was still showing full charge but wouldn’t do anything, I put a charger on it anyways and left it for an hour then it decided to start again. I drove it for the next week without any issues until this morning on my way to work, the gauges went dead and the truck wouldn’t shut off, finally got it to shut off and now it won’t start again. When you push the start button nothing happens at all. I’ve seen other posts with similar issues and people saying they changed the negative battery cable but no one seems to answer if that fixed the problem. I’m looking for help instead of just throwing money and parts at it hoping for a cure. Thanks everyone. I love my Yukon but the newer they get the less reliable they seem to be.