<h1>Programming Instructions for the 2017 Lexus IS200t Keyless Entry Remote Fob (Smart Key)</h1> <p><font size="3"><b>Important:</b> The 2017 Lexus IS200t does not support onboard programming for smart key remote fobs. A certified technician with the proper diagnostic equipment must perform the programming procedure. </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 fob is compatible with the 2017 Lexus IS200t and has not been previously paired with another vehicle. </font></li> <li><font size="3">Step 2: Arrange service with an automotive technician who is certified to work with Lexus smart key systems and has access to factory-grade diagnostic tools. </font></li> <li><font size="3">Step 3: Ensure the technician uses secure, professional software capable of accessing the vehicle’s immobilizer and electronic key registration system. </font></li> <li><font size="3">Step 4: If the vehicle is drivable, consider transporting it to the technician’s location to reduce costs associated with mobile programming services. </font></li> <li><font size="3">Step 5: Bring all existing smart keys to the appointment. Some Lexus systems require all remotes to be present during programming to maintain their active status. </font></li> <li><font size="3">Step 6: The technician will connect a diagnostic interface to the vehicle’s onboard data port, typically located beneath the dashboard. </font></li> <li><font size="3">Step 7: The technician will initiate the key registration process and securely pair the new smart key fob with the vehicle’s system. </font></li> <li><font size="3">Step 8: After programming is complete, the technician will test the new key fob to ensure that locking, unlocking, trunk access, and push-button start are all functioning properly. </font></li> <li><font size="3">Step 9: If additional smart keys need to be added, they can usually be programmed during the same session. </font></li> <li><font size="3">Step 10: Before concluding service, confirm that all programmed remotes work as expected and that the vehicle responds correctly to each.</font></li> </ul>