Garmin GI 275 Pilot's Manual page 211

Airport Runways
Runway
number
WARNING: Do not use the Garmin SVT runway depiction as the sole means for
determining the proximity of the aircraft to the runway or for maintaining the proper
approach path angle during landing.
NOTE: Not all airports have runways with endpoint data in the database; therefore,
SVT does not display these runways.
Runway data provides improved awareness of runway location with respect to the
surrounding terrain. All runway thresholds are depicted at their respective elevations as
defined in the database. In some situations, where threshold elevations differ significantly,
crossing runways may appear to be layered. As runways are displayed, those within 45 degrees
of the aircraft heading are displayed in white. Other runways will be gray in color. When
an approach for a specific runway is active, that runway will appear brighter and be outlined
with a white box, regardless of the runway orientation as related to aircraft heading. As the
aircraft gets closer to the runway, more detail such as runway numbers and centerlines will be
displayed.
190-02246-01 Rev. A
SVT Airport Runway
Garmin GI 275 Pilot's Guide
Additional Features
189