Chevrolet 2003 Impala Owner's Manual page 110

8. Return to the vehicle. Firmly press and hold the
programmed HomeLink@ button for two seconds,
then release. Repeat the press/hold/release
sequence a second time, and depending on the
brand of the garage door opener (or other rolling
code device), repeat this sequence a third time
to complete the programming.
HomeLink@ should now activate your rolling code
equipped device.
To program the remaining two HomeLink@ buttons,
begin with Step 2 of "Programming HomeLink@." Do not
repeat Step 1.
Gate Operator and Canadian
Programming
Canadian radio-frequency laws require transmitter
signals to "time out" or quit after several seconds of
transmission. This may not be long enough for
HomeLink@ to pick up the signal during programming.
Similarly, some U.S. gate operators are manufactured to
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If you live in Canada, or you are having difficulty
programming a gate operator by using the
"Programming HomeLinke' procedures (regardless of
where you live), replace Step 3 under "Programming
HomeLink@" with the following:
Continue to press and hold the HomeLink@ button while
you press and release every two seconds (cycle)
your hand-held transmitter until the frequency signal has
been successfully accepted by HomeLink@. The
indicator light will flash slowly at first and then rapidly.
Proceed with Step 4 under "Programming HomeLink@"
to complete.
Using HomeLink@
Press and hold the appropriate HomeLink@ button for at
least half of a second. The indicator light will come
on while the signal is being transmitted.
Erasing HomeLink@ Buttons
To erase programming from the three buiions do the
following:
1. Press and hold down the two outside buttons until
the indicator light begins to flash, after 20 seconds.
2. Release both buttons. Do not hold for longer than
HomeLink@ is now in the train (learning) mode and can
be programmed at any time beginning with Step 2
under "Programming HomeLink@."
Individual buttons can not be erased, but they can be
reprogrammed. See "Reprogramming a Single
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30 seconds.
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