Lexus GS300 1998 Owner's Manual page 100

3. When the frequency and code is registered, the indicator
light flashes rapidly. At this point, you can release both
buttons.
4. To program the remaining buttons, repeat steps "1"
through "3".
If you want to write a new program over the program set
already, select a button you want to program and repeat the
procedure from step "1". The previous program is erased and
a new program will be set.
If the transmitter has a "rolling code" feature, it is
necessary to program the in–garage receiver, after
programming the garage door opener in the vehicle. For
setting the in–garage receiver, refer to the instruction
manual for the receiver.
After setting the in–garage receiver, push the programmed
button on the vehicle for about 1 to 2 seconds within the
operational range.
Garage door openers manufactured before 1982 cannot be
programmed.
CAUTION
When programming or operating the garage door opener,
make sure there is no one around the moving door. It is
dangerous if someone is caught.
INTERIOR EQUIPMENT
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