<h1>2002 GMC Yukon Denali Keyless Entry Remote Fob Important</h1> <p><font size="3"><strong>Notice:</strong> The 2002 Yukon Denali supports onboard programming for keyless entry remotes. This procedure does not require any special tools, but it must be followed exactly for successful programming. </font></p> <p><font size="3"><strong>Programming Procedure</strong> </font></p> <ul> <li><font size="3">Step 1: Prepare the Vehicle Ensure all doors are fully closed. Insert the key into the ignition, but do not start the engine. </font></li> <li><font size="3">Step 2: Activate the Unlock Button Press and hold the power UNLOCK button on the driver’s door panel. – Continue holding this button throughout the next steps. </font></li> <li><font size="3">Step 3: Cycle the Ignition Switch While holding the unlock button, complete the following sequence quickly: Turn the ignition to the ON position (do not start the engine). Turn the ignition OFF. Turn the ignition ON again. Turn the ignition OFF again. </font></li> <li><font size="3">Step 4: Enter Programming Mode Release the power UNLOCK button. – The doors will automatically lock and unlock, indicating the vehicle has entered remote programming mode. </font></li> <li><font size="3">Step 5: Program the First Remote Press and hold the LOCK and UNLOCK buttons on the remote fob at the same time. – Continue holding for up to 30 seconds until the doors lock and unlock again, confirming successful programming. </font></li> <li><font size="3">Step 6: Program Additional Remotes Repeat Step 5 immediately for any additional remotes you want to program. – All remotes must be programmed during the same session. </font></li> <li><font size="3">Step 7: Exit Programming Mode Turn the ignition to the ON position to end programming mode.</font></li> <li><font size="3"> Step 8: Test All Remotes Check each programmed remote to ensure all functions—lock, unlock, and panic—are working properly. </font></li> </ul> <p><strong><font size="3">Additional Considerations </font></strong></p> <ul> <li><font size="3">Program All Remotes Together: Any remotes not included during this session will no longer function until reprogrammed. </font></li> <li><font size="3">Restarting the Process: If programming fails, restart the entire process from Step 1. </font></li> <li><font size="3">Battery Check: If a remote does not program, confirm that its battery is in working condition before retrying.</font></li> </ul>