Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2003 Toyota PriusFACTORY OEM SERVICE PROCEDURE
Land Cruiser
- Connect hand-held tester to data link connector No. 3. When using hand-held tester, more detailed procedures may be displayed on tester while performing this procedure.
- Insert registered master key in ignition lock cylinder. Turn ignition on. Select key deletion from hand-held tester. Ensure SECURITY indicator light is on. SECURITY indicator light is displayed as a vehicle icon near the center of the tachometer.
- Within 10 seconds of completing hand-held tester operation, remove master key from ignition lock cylinder. SECURITY indicator light should flash ON and OFF in 1 second intervals. Procedure is now complete and transponder key code should now be erased. SECURITY indicator light should begin flashing signaling normal operation of immobilizer system.
Factory Service Tools
Use the Manual With the Right Hardware
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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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