1998 Lexus ES 300FACTORY OEM SERVICE PROCEDURE

Using LEXUS Scan Tool

  1. Insert registered master key in ignition.
  2. Perform this step within 2 minutes of completing last step. Select master key registration using LEXUS scan tool.
  3. Perform this step within 20 seconds of completing last step. Remove master key.
  4. Perform this step within 10 seconds of completing last step. Insert master key to be registered in ignition. Security indicator should flash. After one minute, additional master key is registered. Security indicator should turn off.
  5. If programming additional keys, repeat process starting with step  4. If additional keys do not need programming, remove master key from ignition. Depress and release brake pedal at least once after security indicator has been out for 10 seconds to complete registration mode.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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