is the problem I am having with my car very expensive to fix?

What is your question?

The screen for my navigation just started to get a little dull. Not as bright as it always has been. is the problem with a bulb? Don't think it is my battery because the engine turns on right away. My music sounds perfect. Should it go black I won't be able to use my screen for navigation. My dealer service dept. is closed on Saturday. Recently had my a/c replaced at the dealership. Car mileage just turned 68,100 miles and car is kept in a garage. Have not noticed any leaks and no noises. Car is clean inside and out with no damages.

What makes this problem better or worse?

Not using car until Monday. when dealership service dept. opens

How long has your 2011 Hyundai Tucson had this problem?

First happened yesterday afternoon.