nav

My factory Nav stopped working last weekend. CAL is displayed in the dash display and GPS displays on the NAV screen with a red line through it. I can't find any settings to run a calibration. Is there a process or do I have to take it in for service?

2014-15 GMC Navigation System MVI is proud to offer the factory OEM navigation system for your new 2014-2015 GMC, Chevrolet, or Buick! Many aftermarket systems often create more headaches than solutions, unless you stick with the factory systems that were designed for your vehicle, and we have...

I have a 2013 yukon without navigation. I was able to acquire a factory navigation unit for this vehicle but the plugs on the back are different. Is there a harness or a converter of some type that i can use to hook this thing up? Any help would be great as I and stuck at the moment.

I have an 08 Sierra. I want to throw a few bucks at the truck to update it a bit. Been shopping for new head-unit with nav, blu-tooth, rear-view cam, etc. However, I am interested to know if anyone is aware of a GMC product (or aftermarket I guess) that replaces the head unit with nav, etc...