2003 Chevrolet Impala Owner's Manual - Page 109

Be sure that people and objects are clear of the garage door or gate operator you are programming. When programming a garage door, it is advised to park outside of the garage. It is recommended that a new battery be installed in your hand-held transmitter for quicker and more accurate transmission of the radio frequency. Your vehicle's engine should be turned off while programming the transmitter. Follow these steps to program up to three channels: Press and hold down the two outside buttons, releasing only when the indicator light begins to flash, after 20 seconds. Do not hold down the buttons for longer than 30 seconds and do not repeat this step to program a second and/or third transmitter to the remaining two HomeLink@ buttons. 2 Position the end of your hand-held transmitter about 1 to 3 inches (3 to 8 cm) away from the HomeLink@ buttons while keeping the indicator light in view. 3. 4. The indicator light will flash slowly at first and then rapidly after HomeLink@ successfully receives the frequency signal from the hand-held transmitter. Release both buttons. 5. Press and hold the newly-trained HomeLink@ button and observe the indicator light. If the indicator light stays on constantly, programming is complete and your device should activate when the HomeLink@ button is pressed and released. To program the remaining two HomeLink@ buttons, begin with Step 2 under "Programming HomeLink@." Do not repeat Step 1 as this will erase all of the programmed channels. If the indicator light blinks rapidly for two seconds and then turns to a constant light, continue with Steps 6 through 8 following to complete the programming of a rolling-code equipped device (most commonly, a garage door opener). 6. At the garage door opener receiver (motor-head unit) in the garage, locate the "Learn" or "Smart" button. This can usually be found where the hanging antenna wire is attached to the motor-head unit. 7. Firmly press and release the "Learn" or "Smart" button. The name and color of the button may vary by manufacturer. Simultaneously press and hold both the desired button on HomeLink@ and the hand-held transmitter button. Do not release the buttons until Step 4 has been completed. Some entry gates and garage door openers may require you to substitute Step 3 with the procedure noted in "Gate Operator and Canadian Programming'' later in this section. You will have 30 seconds to start Step 8. 2-40