<h1>2013 GMC Sierra – Remote Key Fob Programming Guide</h1> <p><font size="3">For the 2013 Sierra, remote key fob programming cannot be completed manually. A diagnostic tool is required, and the procedure must be performed by a trained automotive technician. </font></p> <p><font size="3"><b>Programming Instructions:</b> </font></p> <ul> <li><font size="3">Step 1: Schedule an appointment with a qualified technician or service provider who has the appropriate diagnostic equipment for key fob programming. </font></li> <li><font size="3">Step 2: If the vehicle is in working condition, consider bringing it directly to the service location rather than requesting on-site support. This can often reduce overall service fees. </font></li> <li><font size="3">Step 3: The technician will connect a diagnostic interface to the vehicle’s onboard system and follow specific procedures to register the new remote. </font></li> <li><font size="3">Step 4: Once the process is completed, verify that all key fob functions—such as lock, unlock, and panic—are working as expected.</font></li> </ul>
