<h1>1999 GMC Jimmy – Remote Fob Programming Instructions</h1> <ul> <li><font size="3">Step 1: Ensure all doors are fully closed. </font></li> <li><font size="3">Step 2: Insert the ignition key but leave it in the OFF position. </font></li> <li><font size="3">Step 3: On the driver’s door, press and hold the UNLOCK button. Keep holding it throughout the next steps. </font></li> <li><font size="3">Step 4: Quickly cycle the ignition to ON, then back to OFF. Repeat this once more (ON → OFF). </font></li> <li><font size="3">Step 5: Release the UNLOCK button. The door locks should cycle, confirming the vehicle has entered programming mode. </font></li> <li><font size="3">Step 6: Press and hold the LOCK and UNLOCK buttons on the remote simultaneously for 15–30 seconds. </font></li> <li><font size="3">Step 7: Wait for the locks to cycle again, indicating successful programming. </font></li> <li><font size="3">Step 8: For each additional remote, repeat Step 6. </font></li> <li><font size="3">Step 9: Turn the ignition to ON to exit programming mode. </font></li> <li><font size="3">Step 10: Test all remotes to verify functionality.</font></li> </ul>
