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Aviation Alerts and Advisories

Service Advisory 1874 Rev B: GNS 480 (CNX 80) End of Service Life


Added Display Info


Garmin GNS 480 (CNX 80) units are affected.


Repairs to the GNS 480 (CNX 80) display (including the bezel and LCD) are no longer available.

Effective 6/30/19, all other repair services and service parts are discontinued for the GNS 480 (CNX 80).

Applicable databases will still be available for download from

We sincerely regret discontinuing service or support on any Garmin product. However, a number of components required for the manufacture and/or repair of essential subassemblies within the affected products are no longer available.

Please visit for your product replacement needs.

Service Advisory 1874 Rev B