The system ID is required for aviation database updates which are downloaded from www.flygarmin.com. The database updates download specific to the system ID of each GTN so it is important this number is correct.

Follow the steps below to locate the system ID, from the 'Home' screen on the GTN:

1. Touch the 'System' icon
2. Select 'System Status'
3. At the top of the 'System Status' page, the 'System ID ' is the second number listed

Once this number is copied correctly, log on to the FlyGarmin website and add the appropriate GTN to an aircraft on the account. Once the GTN  is added, databases will be available for purchase and then ready for download.