Inhibit Mode - Garmin 400 Series Pilot's Manual Addendum

Seven display ranges are available, allowing for a more complete view of the surrounding area.
To change the display range:
1. Select the TERRAIN Page and press up or down on the RNG key to select the desired range: 1 nm, 2 nm,
5 nm, 10 nm, 25 nm, 50 nm, 100 nm.
Aviation information such as airports, VORs, and other navaids can be turned on or off from the
TERRAIN Page.
To show or hide aviation data:
1. Select the TERRAIN Page and press MENU (Figure 2-3).
2. Select 'Show (or Hide) Aviation Data' and press ENT. Pressing the CLR key when the TERRAIN Page is
displayed can also be used to toggle aviation information on or off.

Inhibit Mode

The Garmin TERRAIN system provides an 'inhibit mode'. This mode is designed to deactivate
PDA/FLTA visual alerts when they are deemed unnecessary by the pilot. Flying VFR into an area where
unique terrain exists could cause the system to annunciate a nuisance alert. Pilots should use discretion
when inhibiting the TERRAIN system and always remember to enable the system when appropriate. See
Section 3 for more information on terrain alerts.
To inhibit TERRAIN:
1. Select the TERRAIN Page and press MENU. 'Inhibit Terrain?' is selected by default (Figure 2-4).
2. Press ENT. The TERRAIN system is inhibited. The
annunciator field whenever terrain is inhibited (Figure 2-4).
annunciation is displayed in the terrain
Section 2
Terrain Operation
Figure 2-3: 'Show Aviation Data?'
Menu Selection
Figure 2-4: Inhibiting Terrain
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