WHEN IT IS COLD (approx. 38f and below) My D3 also has a black screen @ start up. The first time it happened was after my dad had been driving the truck for a while, but it was also the first time the weather got below 40. I could have jumped to conclusions blaming him for screwing up my NAV, but instead I READ THE D3 MANUAL A BIT MORE and it states that the screen uses a florescent bulb and it will not charge up when it is cold.
I am quite certain this is the problem: 1. started happening when mother nature turned the temp. dial down below 40f at night. 2. only happens at start up(until t
