I have a 1999 oldsmobile bravada. I need help desperately. When i turn the truck off and put it into park the key does not return to the original start position it stays locked in the ignition and does not allow me to remove the key. I have made sure the truck was in park and everything else. I can restart the truck and drive down the road like there is nothing wrong... but when i shut it off put it in park and try to remove the key it does not allow me to. if any one has any clue on why this maybe let me know. thank you