[Chevelle-list] off topic

[rml438]

Sorry to post off topic. We own a 2004 gmc yukon that is possessed. sometimes 
when its started, it puts itself into 4 wheel drive. sometimes 4 high. 
sometimes 4 low. sometimes the radio looses all its pre programed channels. And 
sometimes it acts proper. and doesn't do any thing weard. has anyone else 
experienced this with their vehicle. and does anyone have knowledge on how to 
fix this possessed behavior. Thank you all for your help. Bob