Garmin 300XL Pilot's Manual And Reference page 41

The scheduler function will display reminder messages (such as 'Change oil', 'Switch
fuel tanks', 'Overhaul', etc) after a specified time has elapsed. For example, if you enter
'Change oil' to be displayed in 30 hours, the message 'Change oil' will be displayed after the
GNC 300XL has been running in Normal mode for 30 hours. After appearing, the message
will be displayed each time the GNC 300XL is turned on until it is changed or deleted.
To enter a scheduled message:
N O
1. Press and rotate
C
2. Press twice and rotate
E
3. Press .
O
4. Rotate to highlight the message you would like to edit. To delete, press
E
then .
K O
5. Use and to enter the message. Press
K O
6. Use and to set the time to elapse before the message is displayed, in hours and
minutes, up to 99 hours and 59 minutes (this time is cumulative and counts whenever
the GNC 300XL is on in normal operating mode).
E
7. Press .
You may edit another scheduled message by repeating steps 4, 5, 6 and 7, or if you are
finished, press C.
to display NAV Menu 2.
O
until 'Scheduler?' is highlighted.
E
.
\
,
The scrolling arrow prompt indicates which direc-
tion to scroll to view additional listings.
The scheduled message will appear after the timer
expires and reappear every time the GNC 300XL
is powered on until the message is changed.
NAV KEY SECTION
1
NAV Menu 2
Scheduler
31