Garmin G500 Pilot's Manual page 114

TFR Viewing Range (Optional)
The Temporary Flight Restriction (TFR) viewing range option selects
whether TFR information is shown on the Navigation Map. TFR information
will be shown at and below the selected map range. When Off is selected, the
information will not be shown. In the example below where 500 NM is selected,
TFR information will be shown at map ranges of 500 NM and lower. This
optional feature requires an active data link receiver.
Figure 3-62 Navigation Map TFR Viewing Range Selection
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Garmin G500 Pilot's Guide 190-01102-02 Rev. E