Cockpit Reference Guide

Garmin G1000 Cockpit Reference Guide for the Cessna Nav III
190-00384-09 Rev. A
SECTION 12 – ABNORMAL
OPERATION
12-4
Also, while the G1000 is in DR Mode, the autopilot will
not couple to GPS, and Terrain Proximity, TERRAIN-SVS,
and TAWS are disabled. Additionally, the accuracy of all
nearest information (airports, airspaces, and waypoints) is
questionable. Finally, airspace alerts continue to function,
but with degraded accuracy.