<h1>2002 GMC Sierra – Keyless Entry Remote Setup Guide</h1> <p><font size="3">Onboard programming is supported for this model. The following steps allow you to program one or more remotes. </font></p> <ul> <li><font size="3">Step 1: Make sure every door is completely closed before starting the procedure. </font></li> <li><font size="3">Step 2: Insert your key into the ignition. </font></li> <li><font size="3">Step 3: Hold down the UNLOCK button on the driver’s door panel and continue holding until told to release it. </font></li> <li><font size="3">Step 4: Perform this sequence rapidly: Turn the ignition to ON, then to OFF. Turn it again to ON, then back to OFF. </font></li> <li><font size="3">Step 5: Release the UNLOCK button. You should hear the door locks cycle to confirm the vehicle is ready to accept remotes. </font></li> <li><font size="3">Step 6: Press and hold both the LOCK and UNLOCK buttons on your remote at the same time. Continue holding until the locks cycle again (up to 30 seconds). </font></li> <li><font size="3">Step 7: Repeat Step 6 for any additional remotes. </font></li> <li><font size="3">Step 8: Turn the ignition to ON to exit programming mode. </font></li> <li><font size="3">Step 9: Remove the key and test each remote to verify functionality.</font></li> </ul>