My clock doesn't work
I bought a 2011 Chevy Suburban LTZ. I realized on
the screen it didnt say a time. When pushing
buttons I got Where you would change the time but
it only shows colons. It won't let me put any
numbers in. So on the screen where in the upper
right corner should say a time, its only a colon.
There is nothing in the Manuel I could see to help
me.