Garmin GI 275 Pilot's Manual page 118

Navigation
Terrain
Relative terrain data may be displayed which overlays colors on the map depending on the
aircraft altitude.
Terrain Overlay
Icons
Enabling/disabling the display of relative terrain:
1) From the 'HSI Map' Page, open the menu and select HSI Map Options > Map
Options.
Or:
From the 'Map' Page, open the menu and select Map Options.
2) Select the Terrain Button to enable/disable the display of relative terrain.
96
'Map' Page - Terrain and Obstacles displayed
Garmin GI 275 Pilot's Guide
Terrain Data
displayed on
map
190-02246-01 Rev. A