<h1>Keyless Entry Remote Programming Guide – 2021 Audi Q3 (Smart Key System)</h1> <p><font size="3"><b>Important Notice:</b> The 2021 Audi Q3 does not support onboard programming for smart key remotes. Programming must be carried out by a qualified technician using manufacturer-approved diagnostic equipment. </font></p> <p><font size="3"><b>Step-by-Step Programming Instructions:</b></font></p> <ul> <li><font size="3"> Step 1: Schedule an appointment with a certified dealer or a qualified automotive technician experienced in programming Audi smart key systems. </font></li> <li><font size="3">Step 2: Confirm that the technician uses diagnostic tools compatible with Audi's vehicle systems, including the keyless entry, ignition, and immobilizer modules. </font></li> <li><font size="3">Step 3: If your vehicle is operable, consider driving it to the service location. This may be more cost-effective than requesting mobile service. </font></li> <li><font size="3">Step 4: Bring all smart key fobs—both new and existing—to the service appointment. Audi systems often require that all keys be programmed together to ensure proper synchronization. </font></li> <li><font size="3">Step 5: The technician will connect professional-grade diagnostic equipment to the vehicle’s OBD-II port and access the electronic programming interface. </font></li> <li><font size="3">Step 6: The new remote will be securely registered to the vehicle’s internal systems, enabling full access to locking functions, remote start, and push-button ignition.</font></li> <li><font size="3"> Step 7: After programming, the technician will test all key fob features, including lock, unlock, tailgate access, and engine start functionality. </font></li> <li><font size="3">Step 8: Ensure each remote fob functions correctly before finalizing the session. </font></li> <li><font size="3">Step 9: Request documentation or confirmation of the completed programming for your records.</font></li> </ul>