Garmin G1000 Maintenance Manual page 83

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5.1.6.2 GDU Advisory Messages
Advisory Message
MFD "key" KEYSTK – key is
stuck.
PFD1 "key" KEYSTK – key is
stuck.
PFD2 "key" KEYSTK – key is
stuck.
G1000 System Maintenance Manual
190-00903-00
Possible Cause
The G1000 has determined
a key is stuck on the MFD.
The G1000 has determined
a key is stuck on PFD1.
The G1000 has determined
a key is stuck on PFD2.
Recommended Actions
a. Select the GDU Test Page and
verify key is stuck (if key is
stuck the corresponding
indicator will be green).
b. Exercise suspected stuck key
and reset GDU Test Page to
see if indicator remains green
without pressing the key.
c. If problem persists replace the
display.
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