<h1>2015 Lexus GS350 – Keyless Entry Remote Fob Programming Instructions</h1> <p><font size="3"><b> Note:</b> The 2015 Lexus GS350 does not support onboard programming for smart key remote fobs. Programming requires specialized diagnostic equipment capable of interfacing 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: Confirm that the replacement smart key remote fob is compatible with the 2015 Lexus GS350, including the correct part number, frequency, and FCC ID.</font></li> <li><font size="3"> Step 2: Ensure that the vehicle’s battery is fully charged and that all doors, trunk, and hood are securely closed to avoid 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 communicate 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 required to insert the original key or fob into the ignition or press specific buttons on the remote to confirm programming. </font></li> <li><font size="3">Step 6: If you need to program additional remotes, repeat the process for each one during the same session to ensure they are all registered with the vehicle. </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 the newly programmed remote fobs to ensure they work as expected, including lock, unlock, trunk release, and engine start/stop functions.</font></li> </ul>
