400/500 Series Garmin Optional Displays

Unlighted Obstacles
1000’ AGL
Potential Impact Points
52
Section 2
TAWS Operation
Figure 2-6: TAWS Symbols
Lighted Obstacles
1000’ AGL
TAWS Symbols
The symbols depicted in Figure 2-6 are used to represent obstacles and potential impact points on the
TAWS Page. Note that obstacle symbols are shown on display zoom ranges up to 10 nm.
Color Interpretation
Garmin TAWS uses black, yellow, and red to depict terrain information relative to aircraft altitude
(Figure 2-7). Each color is associated with an alert severity level and a suggested course of action. Color
assignments are used by terrain graphics, obstacle symbols, and visual annunciations.
Color TERRAIN/Obstacle Location
Red TERRAIN/Obstacle is within 100’ or
above aircraft altitude.
Yellow TERRAIN/Obstacle is within 1000’
of aircraft altitude.
Black TERRAIN/Obstacle is more than
1000’ below aircraft altitude.
1000' AGL
100' Threshold
Alert Level Suggested Aircrew Response
WARNING Initiate climb and/or turn away from
terrain/obstacle.
CAUTION Be aware of surroundings.
Be prepared to take action.
NO DANGER No action required.
Table 2-1: TAWS Color Symbology
Projected Flight Path
Unlighted Obstacle
Figure 2-7: Terrain Altitude/Color Correlation
Potential Impact Point