<h1>2016 Lexus GS350 – Keyless Entry Remote Fob Programming Instructions</h1> <p><font size="3"><b>Note:</b> The 2016 Lexus GS350 does not support onboard programming for smart key remote fobs. Programming requires the use of specialized diagnostic equipment to communicate with the vehicle's electronic control modules. </font></p> <p><font size="3"><b>Step-by-Step Programming Instructions:</b> </font></p> <ul> <li><font size="3">Step 1: Verify that the replacement smart key remote fob is compatible with the 2016 Lexus GS350, including the correct part number, frequency, and FCC ID. </font></li> <li><font size="3">Step 2: Ensure the vehicle's battery is fully charged and all doors, trunk, and hood are securely closed to prevent interruptions during the programming process. </font></li> <li><font size="3">Step 3: Connect a professional-grade diagnostic tool to the vehicle’s OBD-II port, which is located beneath the dashboard on the driver's side. This tool will interface with the vehicle’s Body Control Module (BCM) and Smart Key ECU.</font></li> <li><font size="3"> Step 4: Follow the instructions on the diagnostic tool’s interface to access the Keyless Entry or Smart Key Programming section. </font></li> <li><font size="3">Step 5: Use the diagnostic tool to program the new smart key remote fob. You may be prompted to insert the original key or fob into the ignition or press specific buttons on the remote to confirm the programming process. </font></li> <li><font size="3">Step 6: If additional remotes need to be programmed, repeat the process for each one during the same session to ensure all remotes are correctly registered. </font></li> <li><font size="3">Step 7: Once programming is complete, follow the diagnostic tool’s instructions to exit programming mode and disconnect the tool from the OBD-II port. </font></li> <li><font size="3">Step 8: Test each newly programmed remote fob to ensure all functions, such as lock, unlock, trunk release, and engine start/stop, are working as expected.</font></li> </ul>
