2008 Toyota Prius BaseFACTORY OEM SERVICE PROCEDURE

Smart Ignition (READY) Function

When the driver pushes the power SW while carrying the electrical key, the ID code of the electrical key is identified by the certification ECU using the room oscillator in the passenger cabin. After the ID code has been identified, the hybrid vehicle immobilizer is released and the electric power is set to ACC ON to enable the engine to be started. Pushing the power SW again sets power supply to IG ON and another push sets it to OFF. The switch state cycles through ACC ON to IG ON to OFF and back to ACC ON. The vehicle gets READY to drive when the driver pushes power SW while applying the brake pedal in any power supply state.

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.