Installing and Removing Data Cards
You can use optional Garmin data cards in your GPSMAP 278 to
show digital charts and maps. Install the data card in the card slot
located on the bottom of the unit. Install or remove the data card at
any time, whether the unit is on or off.
You can load a variety of information on your data card, such as
MapSource detailed maps. You can also buy pre-programmed cards
to use with your GPSMAP 278.
NOTE: Data cards are not waterproof, should not be exposed to
moisture or excessive static charges, and should be stored in the
case supplied with the card.
To install a data card:
1. Insert the card into the slot on the bottom of the unit. Be sure
the label is facing the front of the unit.
2. Firmly push the card into the unit. It is not necessary to force
the card. The handle is still exposed when it is properly
inserted.
3. If the unit is on, a confirmation tone sounds. The first time
you insert a programmed data card, the unit takes a few
seconds to read the card. Once the data card has been
properly installed and accepted, a summary screen noting
the card details appears. Press ENTER to acknowledge.
If you insert a data card and get a card format not recognized
message, try removing the card and reinserting it. If the card is still
not recognized, contact Garmin or your Garmin dealer.
To remove a data card:
1. Grasp the card handle. The handle expands for easy
removal.
2. Pull the card out of the card slot on the bottom of the unit.
3. If the unit is on, a confirmation tone sounds when the data
card has been removed.
GPSMAP 278 Owner’s Manual 107
APPENDIX > INSTALLATION INFORMATION
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