Garmin G1000 Cockpit Reference Guide for the Columbia 350/400 10-15
SECTION 10 – HAZARD
AVOIDANCE
TAWS Alerts Summary

The following table shows the possible TAWS alert types with corresponding annunciations and aural messages.

Alert Type

PFD/MFD TAWS

Page

Annunciation

MFD

Pop-Up Alert Aural Message

Excessive Descent Rate Warning (EDR) “Pull Up”
Reduced Required Terrain Clearance Warn-
ing (RTC) or
“Terrain, Terrain; Pull Up, Pull Up”
or
“Terrain Ahead, Pull Up; Terrain Ahead, Pull Up”
Imminent Terrain Impact Warning (ITI)
or
Terrain Ahead, Pull Up; Terrain Ahead, Pull Up”
or
“Terrain, Terrain; Pull Up, Pull Up”
Reduced Required Obstacle Clearance
Warning (ROC)or
“Obstacle, Obstacle; Pull Up, Pull Up”
or
“Obstacle Ahead, Pull Up; Obstacle Ahead, Pull Up”
Imminent Obstacle Impact Warning (IOI)
or
“Obstacle Ahead, Pull Up; Obstacle Ahead, Pull Up”
or
“Obstacle, Obstacle; Pull Up, Pull Up”
Reduced Required Terrain Clearance Caution
(RTC) or
“Caution, Terrain; Caution, Terrain”
or
“Terrain Ahead; Terrain Ahead”
Imminent Terrain Impact Caution (ITI)
or
“Terrain Ahead; Terrain Ahead”
or
“Caution, Terrain; Caution, Terrain”
Reduced Required Obstacle Clearance
Caution (ROC) or
“Caution, Obstacle; Caution, Obstacle”
or
“Obstacle Ahead; Obstacle Ahead”
Imminent Obstacle Impact Caution (IOI)
or
“Obstacle Ahead; Obstacle Ahead”
or
“Caution, Obstacle; Caution, Obstacle”
Premature Descent Alert Caution (PDA) “Too Low, Terrain”
Altitude Callout “500” None None “Five-Hundred”
Excessive Descent Rate Caution (EDR) “Sink Rate”
Negative Climb Rate Caution (NCR)
or
“Don’t Sink”
or
“Too Low, Terrain”