2001 Lexus IS 300FACTORY OEM SERVICE PROCEDURE

Modes Of Registration

There are 4 registration (programming) modes:

  1. Add Mode

    Adds a transmitter without erasing existing transmitter codes. Four transmitter codes can be registered at one time. If number of registered codes exceeds 4, previously registered codes are erased in order, starting with first registered code.
  2. Rewrite Mode

    Erases all previously registered transmitter codes and reprograms new transmitters.
  3. Confirmation Mode

    Informs user of number of existing transmitter codes already programmed in system.
  4. Prohibition Mode

    Erases all existing registered transmitter codes and cancels wireless door lock operation. Use this function if transmitter is lost or stolen.

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

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

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

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