I have an '02 avalanche z71 5.3 with 120K miles and I love this truck but recently I have noticed if the truck sits overnight in the garage and I have left a window cracked or the sunroof open, I won't have any power to the passenger windows or the sunroof until 5 minutes after starting the truck. I'm not sure if this only happens when I have left a window or the sunroof open but it's always in the garage and that is when I notice I don't have any power. My heated seats and radio work without issue during this time. PLEASE HELP!!!

Thanks!