2019 Lexus IS300

<h1>Programming Instructions for the 2019 Lexus IS300 Keyless Entry Remote Fob (Smart Key)</h1> Important: The 2019 Lexus IS300 does not allow onboard programming for smart key remote fobs. Programming must be completed by a qualified automotive technician using professional diagnostic equipment. Step-by-Step Programming Instructions: <ul> <li>Step 1: Verify that the new smart key fob is compatible with the 2019 Lexus IS300 and has not been previously paired with another vehicle. </li> <li>Step 2: Arrange service with a certified technician who is experienced with Lexus smart key systems and equipped with factory-level diagnostic tools. </li> <li>Step 3: Confirm that the technician uses secure software capable of accessing the vehicle’s immobilizer and key registration modules. </li> <li>Step 4: If the vehicle is drivable, consider visiting the technician’s location to avoid extra costs associated with mobile service. </li> <li>Step 5: Bring all existing smart keys to the appointment. Lexus systems often require that all remotes be present during the session to ensure continued functionality. </li> <li>Step 6: The technician will connect a diagnostic tool to the vehicle’s onboard data port, typically located beneath the dashboard. </li> <li>Step 7: Using authorized software, the technician will initiate the programming process to register the new smart key with the vehicle’s control system. </li> <li>Step 8: After registration, the technician will test all functions of the smart key, including locking, unlocking, trunk access, and push-button start. </li> <li>Step 9: Additional smart keys can typically be programmed in the same session if needed. </li> <li>Step 10: Before completing service, confirm that all programmed remotes function correctly and that the vehicle responds properly to each one.</li> </ul>

2019 Lexus IS300

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