I have a 2011 DTS Platinum and had to replaced the battery, everything is great except for the digital clock. I can go into the menu on the display and get to the settings for the clock but cannot get the time to change. Minutes or hours will not change. I can change from 12 to 24 hour setting but display only shows the colon and no time. Is there something else I need to do? I do not subscribe to XM radio and thought maybe that is the issue and it sets from their broadcast but find nothing about that. Radio, Nav, and other functions all work fine. Any help would be appreciated, I am a little OCD and it bugs me more than it should.