<h1>2019 Audi TT Keyless Entry Remote Fob (Smart Key)</h1> <p><font size="3"><b> Important Note:</b> The 2019 Audi TT is not onboard programmable. Smart key programming requires specialized diagnostic equipment compatible with Audi’s vehicle security systems. </font></p> <p><font size="3"><b>Step-by-Step Programming Instructions:</b> </font></p> <ul> <li><font size="3">Step 1: Verify Key Compatibility Ensure the replacement smart key is intended for the 2019 Audi TT and has not been previously paired with another vehicle. </font></li> <li><font size="3">Step 2: Prepare the Vehicle Place the transmission in Park. Leave the driver’s door open, with all other doors closed. Ensure the ignition is in the OFF position. Confirm the vehicle battery is in good condition. </font></li> <li><font size="3">Step 3: Connect Diagnostic Equipment Plug an Audi-compatible diagnostic device (such as VCDS, ODIS, or equivalent) into the OBD-II port under the driver's side dashboard. Launch the diagnostic software and initiate communication with the car’s control modules. </font></li> <li><font size="3">Step 4: Access Key Programming Menu Navigate to the Immobilizer or Key Adaptation section of the software. Enter the vehicle’s security access code (PIN or SKC) when prompted. </font></li> <li><font size="3">Step 5: Begin Key Registration Select the option to add a new smart key or adapt keys. Place the new key inside the vehicle, near the signal detection area (usually close to the push-button start). Follow the prompts on the screen to initiate key pairing. </font></li> <li><font size="3">Step 6: Program Additional Smart Keys If programming more than one key, repeat Step 5 for each additional smart key. All keys should be present during the session to retain their functionality. </font></li> <li><font size="3">Step 7: Complete the Programming Session Once all keys are programmed, the system will confirm completion. The vehicle may automatically lock and unlock or display a message confirming success. </font></li> <li><font size="3">Step 8: Function Testing Verify each programmed key fob: Test lock/unlock buttons. Ensure the trunk release works. Confirm push-to-start functionality. Check proximity entry if equipped. </font></li> <li><font size="3">Step 9: Finalize and Disconnect Close the diagnostic session. Safely disconnect the programming tool. Recheck all key functions one final time. </font></li> </ul> <p><font size="3"><b>Additional Notes:</b> </font></p> <p><font size="3">Use smart keys with a fully charged internal battery. Timing is important—perform steps without long delays. These instructions program only the remote functions. Mechanical key cutting or immobilizer pairing (if needed) may require additional steps with the same equipment.</font></p>