Just some info of interest.
It's been 4 weeks past the 1 year Anniversary for my 07 and no Post Card yet to notify me of my Free Nav updated disc.
Went to the Nav Center site, updated my info, gave them a call and they're sending it right out

... said it is 2008 Disc.
Direct link to the update info page. You need your VIN # ready.
https://www.gmnavdisc.com/owner-vin.do
Toll-Free number open M-F 8-8 ET
1-877-628-3472
Seems they're not quite on top of things and a few guys found after putting in their VIN # it was for a different vehicle.
One of the reasons they were not getting the Notice or disc.
