Terrain Advisories - Garmin GPS 175 Pilot's Manual

ADVISORY
Pressure altitude
source inoperative
or connection lost.
Press "Enable APR
Output" before
selecting APR on
autopilot.
ADS-B Out fault.
Pressure altitude
source inoperative
or connection lost.
Transponder has
failed.
Transponder is
operating in ground
test mode.
<GPS/GNX> demo
mode.
6.8

Terrain Advisories

ADVISORY
Terrain alerts are
inhibited. Re-enable
alerts in the Terrain
menu.
190-02207-02 Rev. 1
CONDITION
<GPS/GNX> is not
receiving pressure
altitude data from any
source.
Approach guidance is
available from the
connected
KAP 140/KFC 225
autopilot.
Transponder loses
communication with the
pressure altitude source.
Transponder detects an
internal failure.
Functionality may be
unavailable.
Possible causes:
1090ES ADS-B Out
•
failure
• Transponder failure
Communication with
•
the transponder is
lost
Transponder is being
forced airborne for
ground test.
GNX 375 only.
The unit is in demo
mode. Do not use for
navigation.
CONDITION
Pilot enables terrain alert
inhibit function.
GPS 175/GNX 375 Pilot's Guide
CORRECTIVE ACTION
Contact dealer for service.
Before engaging approach
mode on the autopilot, tap
the Enable APR Output key.
Contact dealer for service.
Contact dealer for service.
Cycle power to the GNX 375
once ground test completes.
Power cycle the unit to exit
demo mode.
CORRECTIVE ACTION
Open Terrain menu and
deselect Terain Inhibit.
Messages
6-11