Hello Everyone, I was wondering if anybody updated their navigation. And if yes, did it just update the routes or did it give new features like background color options or anything like that? Also I was wondering if I should iodate the navigation disk or install CarPlay? If anyone has done it...

Since GM updates maps and software every so often, I wanted to see if anyone knows if any of these numbers are old and need updating. And how would I go about updating. I bought this super-clean 2013 XTS a couple weeks ago with less than 88000 miles on it. I know the maps may be out-of-date, but...

As known by many owners of 2005-7 STS with Navigation (RPO YQ4) the clock fix firmware circa 2020 breaks Voice Recognition & various other functions depending on steering wheel button layout. This is the fix available on the web at https://tis2web.akamai.gm.com/radio/STS_GPS_MY_08_Fix.zip. It...