System Maintenance Manual
G1000/GFC700 System Maintenance Manual – C90A/C90GT/C90GTi King Air Page 5-3
190-00682-01 Revision G
5.1.1 Aural & Audio Alerts
The G1000 system is capable of issuing audio and aural (voice) alerts for various situations. The
following alerts are utilized by the G1000:
Alert Name Purpose
Traffic (voice) TIS Traffic Advisory
No Traffic (voice) TIS Traffic Unavailable
“Minimums, Minimums” (voice) Minimums Aural Alert
Alt Alert Altitude Alerting Function
“Caution Terrain, Caution Terrain” (voice) and
“Terrain Ahead, Terrain Ahead” (voice)
TAWS Caution alert: Reduced required terrain
clearance
Or Imminent impact with terrain.
“Terrain Terrain, Pull Up Pull Up” (voice) and
“Terrain Ahead Pull Up, Terrain Ahead Pull Up”
TAWS Warning alert: Reduced required terrain
clearance
Or Imminent impact with terrain.
“Too Low Terrain” (voice) TAWS Caution alert: Premature descent alert (PDA)
“Sink Rate” (voice)
TAWS Caution alert: Ground Proximity envelope 1, 2,
or 3, Excessive Descent Rate
“Pull Up” (voice)
TAWS Warning alert: Ground Proximity envelope 1,
2, or 3, Excessive Descent Rate
“Don’t Sink” (voice) and
“Too Low Terrain”
TAWS Caution alert: Ground Proximity altitude loss
after takeoff
“Five Hundred” (voice) TAWS Caution alert: Ground proximity voice callout
“Caution Obstacle, Caution Obstacle” (voice) or
“Obstacle Ahead, Obstacle Ahead ” (voice)
TAWS Caution alert: Obstacle awareness caution.
“Obstacle Obstacle Pull Up Pull Up” (voice) or
“Obstacle Ahead Pull Up, Obstacle Ahead Pull Up”
(voice)
TAWS Warning alert: Obstacle awareness warning.
“TAWS System Failure” (voice) TAWS status alert: Terrain failure
“TAWS Not Available” (voice) TAWS status alert: Terrain not available
“TAWS System Test, OK” (voice)(If passed) or
“TAWS System Failure” (voice) (If test failed)
TAWS status alert: Terrain self-test
“TAWS Available” (voice) TAWS status alert: Terrain available
“Vertical Track” (voice) Vertical navigation alerting function










