<h1>2005 GMC Sierra – Key Fob Programming Process</h1> <p><font size="3">This process allows for programming up to four remotes using only the ignition and driver-side controls. </font></p> <ul> <li><font size="3">Step 1: Ensure all doors are shut. </font></li> <li><font size="3">Step 2: Insert the ignition key without turning it. </font></li> <li><font size="3">Step 3: Hold the UNLOCK button on the driver’s door panel. </font></li> <li><font size="3">Step 4: In quick succession, turn the ignition to ON, then to OFF, and repeat once more: ON → OFF </font></li> <li><font size="3">Step 5: Release the UNLOCK button. The locks should cycle automatically. </font></li> <li><font size="3">Step 6: On your remote, press and hold LOCK and UNLOCK at the same time. Wait for the locks to cycle again. </font></li> <li><font size="3">Step 7: Repeat Step 6 for any other remotes. </font></li> <li><font size="3">Step 8: Turn the ignition to ON to end the programming session. </font></li> <li><font size="3">Step 9: Remove the key and verify each remote works correctly.</font></li> </ul>
