Push button 4x4 engaging on its own???
 

OK guys, lookin for some help here. Ive got an 03 silverado z71 and im having an issue with the push button 4x4 engaging on its own. at first i thought it was maybe i tapped the auto 4x4 button when flipping on my turn signal or something but today when turning into the parking lot at work my front end almost completely locked up, thought maybe it was the caliper or something then i looked over and the truck had somehow switched into 4hi on its own..... anyone else have this issue and what was ur solution??