I put my truck in reverse a light come on on the dash and says check park assist

What is your question?

2005 lincon navigator. When starting the truck and putting it in reverse the check parking assist on the dash. Even after I turn it off the beeping continues for about 3 mins then turns off. I did a system check and everything says ok. Please help.

What makes this problem better or worse?

It happens every time i start the truck

How long has your 2005 Lincoln Navigator had this problem?

Just started about a week ago just after I bought it