GMC YUKON DENALI 2000 Manual page 138

To determine if you have this system, press the button
on the HomeLink transmitter that you have programmed
already. If the indicator light on the HomeLink
transmitter flashes rapidly for two seconds and then
turns solid, the garage door opener has a rolling code
system. In a rolling code system, the garage door motor
head unit must be trained to the HomeLink transmitter.
Training a Garage Door Opener with a
"Rolling Code" Feature (If Equipped)
If you have not previously programmed the hand
transmitter to the HomeLink transmitter, see
"Programming the HomeLink transmitter" listed
previously. If you have completed this programming
already, you now need to train the garage door opener
motor head unit to recognize the HomeLink transmitter.
Refer to your garage door opener owner's manual for
the proper transmitter training procedure for your garage
door opener brand.
2-68
1. Find the training button on the garage door opener
motor head unit. The exact location and color of the
button may vary by garage door opener brand. If you
have difficulty finding the training button, refer to
your garage door opener owner's manual.
2. Press the training button on the garage door opener
motor head unit. An indicator light will begin to
flash when the motor head unit enters the
training mode.
Note: Following this step, you have 30 seconds to
-
held
start Step 3.
3. Return to the HomeLink transmitter in your vehicle
and firmly press and release the HomeLink
transmitter button you have already programmed for
two to three seconds. Press and release the button
again (you may need to do this step up to three
times) to make sure that the HomeLink transmitter
has been trained to the garage door opener motor
head unit. Check that the training was successful.