Big-ram
Junior Member
Have a 2009 6.7L Diesel with 6 speed auto transmission. When I'm in Drive, I can touch the button on the selecter arm and shift to the lower gears. But, when I do that it automatically starts at 1st gear and then, with each subsequent press, works up to 6th and back to D. It used to start at 5th and work down. This is a problem if I'm doing 40mph and want to go to 5th or 4th. What happened and how do I fix it?