
Garmin G1000 Cockpit Reference Guide for the Cessna Citation Mustang
190-00600-01 Rev. C
71
Annunciations & Alerts
GCU 475 Message Advisories (Cont.)
Message Comments
GCU KEYSTK
– GCU [key name] Key
is stuck.
A key is stuck on the GCU 475 bezel.
Attempt to free the stuck key by pressing it
several times. The G1000 system should be
serviced if the problem persists.
GMC 710 Message Advisories
Message Comments
GMC CONFIG
– GMC config error.
Config service req’d.
Error in the configuration of the GMC 710.
GMC FAIL
– GMC is inoperative. A failure has been detected in the GMC 710.
The GMC 710 is unavailable.
MANIFEST
– GMC software
mismatch, communication halted.
The GMC 710 has incorrect software
installed. The G1000 system should be
serviced.
GMC KEYSTK
– GMC [key name]
Key is stuck.
A key is stuck on the GMC 710 bezel.
Attempt to free the stuck key by pressing it
several times. The G1000 system should be
serviced if the problem persists.
GWX 68 Alert Messages
Message Comments
GWX CONFIG
– GWX config error.
Config service req’d.
GWX 68 configuration settings do not match
those of the GDU configuration. The G1000
system should be serviced.
GWX FAIL
– GWX is inoperative. The GDU is not receiving status packet from
the GWX 68 or the GWX 68 is reporting a
fault. The GWX 68 radar system should be
serviced.
GWX SERVICE
– GWX needs
service. Return unit for repair.
A failure has been detected in the GWX 68.
The GWX 68 may still be usable.
MANIFEST
– GWX software
mismatch, communication halted.
The GWX 68 has incorrect software installed.
The G1000 system should be serviced.
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