Altitude Alerting - Garmin G1000 Pilot's Manual

Warnings are time-critical and require immediate pilot attention. A flashing WARNING Softkey annunciation
and aural tone (single chime every two seconds) are used to alert the pilot of any warnings. The aural tone
and flashing WARNING annunciator continue until acknowledged by the pilot (by pressing the WARNING
Softkey).
Caution indicates the existence of abnormal conditions on the aircraft that may require pilot intervention. A
flashing CAUTION Softkey annunciation and single aural tone (one chime) are used to alert the pilot of any
cautions. The flashing CAUTION annunciator continues to flash until acknowledged by the pilot (by pressing
the CAUTION Softkey).
An advisory provides general information to the pilot that may not need immediate attention. A flashing
ADVISORY Softkey annunciation (no aural tone) is used to alert the pilot of any message advisories. The
flashing ADVISORY annunciator continues to flash until acknowledged by the pilot (by pressing the ADVISORY
Softkey).

ALTITUDE ALERTING

Altitude Alerting is not available for the Cessna 172.
NOTE:
The Altitude Alerting function provides the pilot with visual and aural alerts when approaching the Selected
Altitude. Whenever the Selected Altitude is changed, the Altitude Alerter is reset. The Altitude Alerter is
independent of the GFC 700 AFCS, but the function is present only when the AFCS is present.
The following occurs when approach the Selected Altitude:
• Upon passing through 1000 feet of the Selected Altitude, the Selected Altitude (shown above the Altimeter)
changes to black text on a light blue background, flashes for five seconds, and an aural tone is generated.
• When the aircraft passes within 200 ft of the Selected Altitude, the Selected Altitude changes to light blue text
on a black background and flashes for five seconds.
• After reaching the Selected Altitude, if the pilot flies outside the deviation band (±200 feet of the Selected
Altitude), the Selected Altitude changes to yellow text on a black background, flashes for five seconds, and an
aural tone is generated.
190-00498-01 Rev. A
Figure 2-36 Softkey Annunciation (ALERTS Softkey labels)
Within 1000 ft
Figure 2-37 Altitude Alerting Visual Annunciations
Garmin G1000 Pilot's Guide for Cessna Nav III
Within 200 ft Deviation of ±200 ft
FLIGHT INSTRUMENTS
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