Today I was sitting in a parking lot with my car running in Park waiting on my child, a warning light appeared "service advance Trac"?? The car is in park, what the heck is this? The message disappeared but came back after a few minutes! Then two other lights appeared in the lower right hand side of the car and swerve lines which I am assuming is related to this Advance Trac? Any ideas? And to top it off, my car seems to think it is NOT in Park when it is and gives me an alarm when I try to turn off the car?? I can wiggle the shifter or take it out of park and jam it back in and it will show the red P on the dash! 50k miles and things are going downhill fast! Any help would be appreciated!