User Guide

Garmin G1000 Pilot’s Guide for the Diamond DA40/40F
190-00592-02 Rev. A6-28
HAZARD AVOIDANCE
6.2 TERRAIN PROXIMITY
CAUTION: Do not use Terrain Proximity information for primary terrain avoidance. Terrain Proximity is
intended only to enhance situational awareness.
NOTE: Terrain data is not displayed when the aircraft latitude is greater than 75 ° North or 60 ° South.
G1000 Terrain Proximity is a non-TSO-C151b-certified terrain awareness system. It increases situational
awareness and aids in reducing controlled flight into terrain (CFIT).
Do not confuse Terrain Proximity with Terrain Awareness and Warning System (TAWS). TAWS is more
sophisticated and robust, and it is TSO-C151b-certified. Terrain Proximity does not provide warning annunciations
or voice alerts. It only provides color indications on map displays when terrain and obstacles are within a certain
altitude threshold from the aircraft. Although the terrain and obstacle color map displays are the same, TAWS
uses more sophisticated algorithms to assess aircraft distance from terrain and obstacles.
REQUIREMENTS
Terrain Proximity requires the following components to operate properly:
• Valid 3D GPS position
• Valid terrain/obstacle database
LIMITATIONS
Terrain Proximity displays altitudes of terrain and obstructions relative to the aircraft position and altitude
with reference to a database that may contain inaccuracies. Terrain and obstructions are shown only if they
are in the database. Terrain and obstacle information should be used as an aid to situational awareness. They
should never be used to navigate or maneuver around terrain.
Note that all obstructions may not be available in the terrain and obstacle database. No terrain and obstacle
information is shown without a valid 3D GPS position.