Originally Posted by Karin D
How do you update the Navigation system in a 2008 Cts, is it a DVD the dealer sticks in it to update or do they download a later version from Gm?
Hello Karin D,
I see you have gotten a couple answers from the community in regards to you navigation disc. I am providing a link for you which will let you search for your vehicle and its navigation system. The correct part number you will need for the most up to date system is 13MY PN 22991499. Here is the site, General Motors Navigation Center - Home
. Normally, the disc cannot be used for another vehicle, because some discs may need to stay in the system for it to properly work. If you have any other questions or concerns, don't hesitate to reach out to us via private message!
Cadillac Customer Care