I bought a Dodge Ram3500 dually Cummins 04.5 with 9000 miles onit but did not get an owners manual with it. When I look at the overhead computer with mileage estimater etc. , I see 3 buttons, one with 1 dot, one with 2 dots and one with 3 dots. When I press any of these buttons a house with arrow indicator displays. What are these modes for?

 

They are there so you can program in a garage door opener.

 

^-- yep. garage doors, gates, anything else that would work on a remote

 

If you do a seach on "homelink" you can find the directions to program it. I belive its www.homelink.com, good luck and enjoy your new toy.