Honda Accord Sedan 1997 Reference Owner's Manual page 56

Keys and Locks
Replacing the Battery
When the remote transmitter's
battery begins to get weak, it may
take several pushes on the button to
lock or unlock the doors, and the
LED will not light. Replace the
battery as soon as possible.
Battery type: CR2025
Instruments and Controls
To replace the battery, remove the
round cover on the back of the trans-
mitter by turning it counterclockwise
with a coin.
BATTERY
Open
Close
Remove the old battery and note the
polarity. Make sure the polarity of
the new battery is the same (+ side
facing up), then insert it in the
transmitter.
Reinstall the cushion ring. Align the
mark on the cover with the
mark on the transmitter,
then set the cover in place and turn it
clockwise.
ROUND
COVER
CUSHION
RING