<h1>2019 Lexus RX450hL Keyless Entry Smart Key Remote Fob</h1> <p><font size="3"><b>Important:</b> The 2019 Lexus RX450hL does not support onboard programming. A qualified professional must perform programming using specialized diagnostic equipment. </font></p> <p><font size="3"><b>Step-by-Step Programming Instructions:</b> </font></p> <ul> <li><font size="3">Step 1: Locate a certified automotive technician or authorized dealer who has the proper diagnostic tools and experience with Lexus hybrid smart key systems. </font></li> <li><font size="3">Step 2: If the vehicle is drivable, it may be more cost-effective to visit the service location rather than request mobile programming, which could incur additional fees. </font></li> <li><font size="3">Step 3: Schedule a service appointment and confirm the technician’s familiarity with programming smart key systems specific to the 2019 RX450hL. </font></li> <li><font size="3">Step 4: Bring all existing and new key fobs with you. Some systems require all remotes to be present during the programming session to ensure they remain functional.</font></li> <li><font size="3"> Step 5: The technician will connect specialized diagnostic equipment to your vehicle’s onboard system through the appropriate interface port. </font></li> <li><font size="3">Step 6: Using this equipment, the technician will program the new smart key remote fob securely into your vehicle’s electronic control system. </font></li> <li><font size="3">Step 7: After the programming process is completed, the technician will test the fob to confirm all functions are working, including locking/unlocking doors and starting the engine. </font></li> <li><font size="3">Step 8: If multiple remotes are being programmed, each one will be added and verified individually to ensure proper operation. </font></li> <li><font size="3">Step 9: Before leaving the appointment, confirm that all remotes work correctly. If available, request confirmation of successful programming for your records.</font></li> </ul>