Cockpit Reference Guide

Garmin G1000 Cockpit Reference Guide for the Cessna Nav III
190-00384-11 Rev. A
SECTION 12 – ABNORMAL
OPERATION
12-4
Also, while the G1000 is in DR Mode, the autopilot will
couple to GPS for up to 20 minutes. Terrain Proximity,
TERRAIN-SVS, and TAWS are also disabled. Additionally,
the accuracy of all nearest information (airports, airspaces,
and waypoints) is questionable. Finally, airspace alerts
continue to function, but with degraded accuracy.