Hi all first post here and I hope someone can help me!! Ok my suburban wont power down, I turn the ignition off and the hvac system stays on? meaning the display stays on therefore my battery drains out in about two days. Also I had a new problem that came up and I dont know if this has any thing to do with it but now all the sudden the car turns off on smooth roads I have to put it in neutral and it cranks back up? What do you guys think???