Garmin G1000 Reference Manual page 155

System Annunciation
Garmin G1000 Cockpit Reference Guide for the Cessna Nav III
Indicates a configuration module failure.
This annunciation will only be seen when the autopilot is engaged. The
annunciation indicates an AHRS monitor has detected an abnormal
flight parameter, possibly caused by strong turbulence. In this case, the
situation should correct itself within a few seconds. If there is an actual
failure, a red "X" will soon appear over the Attitude Indicator.
Display system is not receiving airspeed input from air data computer.
Display is not receiving altitude input from the air data computer.
Display is not receiving vertical speed input from the air data computer.
Display is not receiving valid heading input from AHRS.
SECTION 12 – ANNUNCIATIONS
& ALERTS
Comment
12-7