Garmin G1000 Pilot's Manual page 358

HAZARD AVOIDANCE
TAWS-B continually monitors several system-critical items such as database validity, hardware status, and GPS
status. If the terrain/obstacle database is not available, the voice alert "TAWS System Failure" is generated
along with the 'TAWS FAIL' alert annunciation.
TAWS-B requires a 3-D GPS navigation solution along with specific vertical accuracy minimums. Should the
navigation solution become degraded or if the aircraft is out of the database coverage area, the annunciation
'TAWS N/A' is generated in the annunciation window and on the MAP - TAWS-B Page. The voice alert "TAWS
Not Available" is generated. When sufficient GPS signal is received and the aircraft is within the terrain
database coverage area, the voice alert "TAWS Available" is generated.
Alert Cause
MFD Terrain or Obstacle database
unavailable or invalid. TAWS operating with
PFD Terrain or Obstacle databases
Terrain or Obstacle database unavailable
or invalid on all displays, invalid software
configuration, TAWS audio fault
No GPS position
Excessively degraded GPS signal, aircraft
outside of terrain database coverage area
*Annunciation appears on MFD pages when terrain is displayed.
338
PFD/MFD*
Annunciation
None
TAWS FAIL
TAWS N/A
TAWS N/A
Table 6-18 TAWS-B Abnormal Conditions
Garmin G1000 Pilot's Guide for the Piper PA-32 Saratoga
MAP - TAWS-B Page Center
Banner Annunciation
TERRAIN DATABASE FAILURE
TAWS FAIL
NO GPS POSITION
None
Voice Alert
None
"TAWS System Failure"
"TAWS Not Available"
"TAWS Not Available"
190-02692-00 Rev. A