2018 Lexus IS300

<h1>Programming Instructions for the 2018 Lexus IS300 Keyless Entry Remote Fob (Smart Key)</h1> Important: The 2018 Lexus IS300 does not support onboard programming for smart key remote fobs. Programming must be performed by a qualified automotive technician using advanced diagnostic tools. Step-by-Step Programming Instructions: <ul> <li> Step 1: Confirm that the replacement smart key fob is compatible with the 2018 Lexus IS300 and has not been previously programmed to another vehicle. </li> <li>Step 2: Schedule service with a certified technician who is trained in Lexus smart key systems and uses factory-grade diagnostic equipment. </li> <li>Step 3: Ensure the technician utilizes secure software capable of accessing the vehicle’s immobilizer and electronic key registration system. </li> <li>Step 4: If the vehicle is operable, consider driving it to the service location to minimize costs associated with mobile programming. </li> <li>Step 5: Bring all existing smart keys with you. Some Lexus systems require all remotes to be present during the programming session to retain functionality. </li> <li>Step 6: The technician will connect a diagnostic interface to the vehicle’s onboard port, typically located beneath the dashboard. </li> <li>Step 7: The technician will access the smart key control module and begin the secure registration process for the new key fob. </li> <li>Step 8: Once the programming is complete, the technician will test all remote functions—including lock, unlock, trunk access, and push-button start—to ensure proper operation. </li> <li>Step 9: If additional smart keys need to be programmed, they can usually be added during the same session. </li> <li>Step 10: Before concluding service, verify that all programmed remotes are fully functional and that the vehicle responds correctly to each one.</li> </ul>

2018 Lexus IS300

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