Gray Tone
WARNING: This page is about a different car, the 2011 Acura TL, 2010 Acura TL, and 2009 Acura TL. However, it is still accessible from the selected car via links, so may be relevant.
This screen diagnoses problems with contrast You should be able to see the changes from bar to bar across the scale It is normal for the two bars on either side to appear the same If you can't see changes from bar to bar, replace the navigation display unit