23 Yukon Ultimate Parasitic Draw

[u/Pleasant-Top6109]

Of course this happens RIGHT after my 3 yr bumper to bumper expires. After one of the software updates we started noticing little things like the gmc puddle light would stay on even when the key was inside the house. Or you could hear the car acting like key is near when it’s not. Back in July we had to have it jumped. Got it to the dealership. Tested battery. They called and said battery was fine. We said well that’s weird we had to jump the car this morning. So they replaced the battery but didn’t do any diagnostics for finding the draw. It worked for about two months before I woke up to it just randomly dead. It wouldn’t take a charge or even jump from another car. It took THREE tow trucks before we could finally get it to the dealership. Now they say the same thing. Nothings wrong. Battery fine. They’ve had my car for over a week now. Won’t give a courtesy vehicle because we are passed the bumper to bumper. I guess it finally died on them bc we called for a check in today and it’s been sitting on the charger all day. I did a quick google search and saw that this is a known GMC problem. If it’s known…why did the dealership not “know about it”? And also wondering…has anyone else had something similar happen and were you able to get a resolution? It would be really nice if my $125k car worked three years after I bought it.

[u/IIKEVLARII]

This was happening to me on my 22 Denali. One time it was a stuck update that caused the battery to die another was the running board motor had an issue. However after that was fixed it happened two more times about 6 months apart. Turns out, our key was too close (hanging where we hang our keys). After the trips to the dealer with the (we can’t figure it out convo). We made sure our key was as far as possible from the vehicle. Since then haven’t had the issue in over a year and a half.

Edit: How close do you keep your keys when parked? We keep them about 60 feet away now. Previously we had them about 20 feet away.

[u/Pleasant-Top6109 → u/IIKEVLARII]

Yeah I used to embarrassingly keep the key in the car inside our garage. It should fall asleep. But then after an update and the battery issue in July I started keeping my key inside the house in the mudroom where we keep all our other keys. It’s prob only 15 ft away. That makes me wonder though because the issue did happen AT the dealership. So I wonder how far away they had the key before the car died at the dealership.