Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
146 Instruments and Controls
.If the garage door does
not move, continue with
programming Steps 4–6.
Learn or Smart Button
4. After completing Steps 1– 3, locate the Learn or
Smart button inside
garage on the garage door
opener receiver. The name
and color of the button
may vary by manufacturer.
5. Press and release the Learn or Smart button.
Step 6 must be completed
within 30 seconds of
pressing this button.
6. Return to the vehicle and firmly press and hold the
trained Universal Remote
system button for two seconds and release.
Repeat the
“press/hold/
release” sequence up to
three times to complete
the training process.
The Universal Remote system
should now activate the
garage door. Repeat the
process for programming the
remaining two buttons.
For questions or programming
help, see www.homelink.com/
gm or call 1-800-355-3515.
For calls placed outside the
U.S., Canada, or Puerto Rico,
international rates will apply
and may differ based on
landline or mobile phone.
Radio Signals for Some
Gate Operators
Some gate operators and
radio-frequency laws require
transmitter signals to time out
or quit after several seconds
of transmission. This may not
be long enough for the Universal Remote system to
pick up the signal during
programming.
If the programming did not
work, replace Step 2 under
“Programming the Universal
Remote System”
with the
following:
Press and hold the Universal
Remote system button while
pressing and releasing the
hand-held transmitter button
every two seconds until the
signal has been successfully
accepted by the Universal
Remote system. The Universal
Remote system indicator light
will flash slowly at first and
then change to a rapid flash or
continuous solid-light. Proceed
with Step 3 under
“Programming the Universal
Remote System” to complete.
