Garmin GI 275 Pilot's Manual page 107

Airspace
Altitude Label
Class B Airspace
Changing the 'Map' Page airspace display settings:
1) From the 'Map' Page, open the menu and select Map Options > Aviation Options.
2) Select the Airspaces Button to enable/disable the display of airspaces.
Or:
a) Select the Airspace Options Button.
b) Select the Show Airspaces Button. The option to display no airspace (Off), all
airspace (All), or only airspace below a certain altitude is provided. Select the desired
Airspace Setting Button.
Changing 'Map' Page display settings for each airspace type:
1) From the 'Map' Page, open the menu and select Map Options > Map Options >
Aviation Options > Airspace Options.
2) Select the desired Airspace Type Button to enable/disable the display of that airspace.
3) If necessary, select the desired Airspace Range Button to display a list of range display
settings. Select the desired range display setting for that airspace type.
4) Repeat Steps 2 and 3 as necessary for each airspace type.
190-02246-01 Rev. A
Airspaces on the 'Map' Page
Garmin GI 275 Pilot's Guide
Navigation
Class D Airspace
Class C Airspace
Warning Area
85