Hi any help here is appreciated I installed a factory navigation unit into my 07 ltz. The unit works fine had it flashed to my truck this morning no problems I went to put a navigation disk in from a 08 escalade and it say it is not a map disk has anyone ever seen or heard of this. The escalade disk say gm on it.

 

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I am sorry to hear of your frustration with your navigation disc. The navigation discs are designed to work with specific vehicles; they are not all the same disc. The 2008 Escalade disc is not compatible with 2007 Avalanche LTZ.

If you would like to find a compatible disc, please visit the GM Navigation Disc Center at: GM Nav Disc Center - Program Overview or call them via phone at: 1-877-628-3472.

If you have any additional questions, please feel free to contact me.

Have a great day!

Louis
GM Customer Service

 

Check ebay also. Might save some $s.

 

Thanks Louis, that is helpful information to know...