Chrysler 2008 PT Cruiser - Manual (Page 202)

If the indicator light blinks rapidly for two seconds, and
then turns to a constant light, continue with program-
ming for a Rolling Code.
5. PROGRAMMING A ROLLING CODE SYSTEM
At the garage door opener motor (in the garage), locate
the “Learn” or “Training” button.
This can usually be found where the hanging antenna
wire is attached to the garage door opener motor (it is
NOT the button normally used to open and close the
door).
6. Firmly press and release the “Learn” or “Training”
button. The name and color of the button may vary by
manufacturer.
Training The Garage Door Opener
1 — Door Opener 2 — Training Button
200 UNDERSTANDING THE FEATURES OF YOUR VEHICLE