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If you have trouble programming the universal
transmitter, make sure that you have followed the
directions exactly as described and that the battery in the
hand-held transmitter is not dead. If you still cannot
program it, rotate the hand-held transmitter end over end
and try again. The universal transmitter may not work
with older garage door openers that do not meet current
Federal Consumer Safety Standards. If you cannot
program the transmitter after repeated attempts, consult
your GM dealer.
Be sure to keep the original hand-held transmitter
in case you need to erase and reprogram the
universal transmitter.
Operating the Transmitter
Press and hold the appropriate button on the universal
transmitter. The red light comes on while the signal is
being transmitted.
Note that the effective transmission range of the
universal transmitter may differ from the hand-held
transmitter and from one channel to another.
Training a Garage Opener with a "Rolling
Code" Feature
If you programmed the universal transmitter, but the
garage door will not open, and if your gardge door opener
was manufactured after 1995, your garage door may have
a security feature that changes the "code" of your garage
door opener every time it is opened or closed.
To determine if your garage door opener has this
"rolling code" feature, press the appropriate button
on
the universal transmitter that was programmed. If the
red light flashes rapidly for one to two seconds, then
turns solid, your garage door opener has this feature.
To program a garage door opener with the rolling code
feature, do the following:
1.
2.
3.
Program your hand-held transmitter to the universal
transmitter by following the steps provided under
"Programming the Transmitter" earlier in this section.
Remove the cover panel from the garage door opener
receiver. It is located near the garage door opener motor.
Locate the training button on the garage door opener
receiver. The exact location and color will vary
among brands.
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