Quote:
Originally Posted by tynashracing
...As I increased brightness, the screen lit up to an acceptable level for daytime driving. However, I turned the vehicle off and back on and it went right back to a dim screen as the brightness setting was all the way down again. This time when I adjusted the brightness, it didn't work. Went back in to service mode and found my contrast still set @ -10. 
I'm guessing there's really nothing I can do externally for correcting this issue. |
Are you turning the radio off (pressing the left knob) before turning the ignition off? If not...try it again, but this time...turn the radio off first (press the left knob)...instead of turning the ignition off.
I only say that because the instructions for the radio's service mode says that's how you save the changes...perhaps the Nav's service mode requires the same step.
Wide Screen Nav's Radio Service Mode Instructions:
Wide screen Nav's On-Board Monitor & Navigation Service Mode:
