Garmin G1000 Reference Manual page 165

GIA 63W Message Advisories (Cont.)
Message
COM1 PTT – COM1 push-to-talk key
is stuck.
COM2 PTT – COM2 push-to-talk key
is stuck.
COM1 RMT XFR – COM1 remote
transfer key is stuck.
COM2 RMT XFR – COM2 remote
transfer key is stuck.
LOI – GPS integrity lost. Crosscheck
with other NAVS.
GPS NAV LOST – Loss of GPS
navigation. Insufficient satellites.
GPS NAV LOST – Loss of GPS
navigation. Position error.
GPS NAV LOST – Loss of GPS
navigation. GPS fail.
ABORT APR – Loss of GPS navigation.
Abort approach.
APR DWNGRADE – Approach
downgraded. Use LNAV minima.
TRUE APR – True north approach. All
angles are TRUE.
GPS1 FAIL – GPS1 is inoperative.
GPS2 FAIL – GPS2 is inoperative.
GPS1 SERVICE – GPS1 needs service.
Return unit for repair.
GPS2 SERVICE – GPS2 needs service.
Return unit for repair.
Comments
The COM1 and/or COM2 external push-to-talk switch is stuck in the enable (or
"pressed") position. Press the PTT switch again to cycle its operation.
If the problem persists, the G1000 system should be serviced.
The COM1 and/or COM2 transfer switch is stuck in the enabled (or "pressed")
position. Press the transfer switch again to cycle its operation. If the problem
persists, the G1000 system should be serviced.
GPS integrity is insufficient for the current phase of flight.
Loss of GPS navigation due to insufficient satellites.
Loss of GPS navigation due to position error.
Loss of GPS navigation due to GPS failure.
Abort approach due to loss of GPS navigation.
Use LNAV minima when approach is downgraded.
Displayed after passing the first waypoint of a true north approach when the nav
angle is set to 'AUTO'.
A failure has been detected in the GPS1 and/or GPS2 receiver. The receiver is
unavailable. The G1000 system should be serviced.
A failure has been detected in the GPS1 and/or GPS2 receiver. The receiver may
still be available. The G1000 system should be serviced.
Garmin G1000 Cockpit Reference Guide for the Cessna Nav III
SECTION 12 – ANNUNCIATIONS
& ALERTS
12-17