Still no solution, I have found that it does need a Software update that you need a dealer to order from the Nav Disc Center. I have the software version that it needs to be updated to just trying to find a part number to get it ordered.
I own a 2008 Yukon XL. The navigation system works but whenever you turn the car off and the RAP runs out, the nav resets itself to another search zone. I live in the Cleveland Ohio Area. When I shut the car off and come back a few minutes later and turn it on, the nav has Washington dc as the...
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