Well I got the tuck stuck on a lake when it broke through a thin layer of floor ice. Water was only about 1 inch above the bottom of the rim. While I was trying to get the truck out the check engine light come on. It runs fine and all the guages read the same they always do. Wanted to take it to a dealer to get the light checked bt they all won't be able to look at it for about 1 1/2 weeks. Any ideas what it could be? Or if I should not drive it till I get it fixed.

 

Find another dealer to take it to, if you have another one around.