Garmin APOLLO GX65 - Manual (Page 180)

CLOSE Altitude
This condition occurs when the airspace boundary is
within 500 feet, or a user-selected limit in the System
function.
Within 500’ of
NORTON AFB
Class C
INSIDE
This condition occurs when the plane penetrates the
airspace.
Inside of
SAN DIEGO
Class B
Empty TO Waypoint: Cannot Compute Nav
Anytime the current To waypoint is empty, this
message is generated. It becomes an old message after
viewing.
Empty To Wpt:
Cannot Compute
Nav Info
GPS Self Test Failure
If the GPS self-test fails, a message displays indicating
the cause of the failure in four hexadecimal digits. It
becomes an old message after viewing.
GPS Self Test
Failure: 1FFF
Service Needed
8-4
Message Function