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.
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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 184 (ENGINE IMMOBILIZER SYSTEMS)PROGRAMMINGREGISTRATION OF ADDITIONAL SUB-KEYUSING BRAKE PEDAL & ACCELERATOR PEDAL
2004 Toyota Matrix XR, FWD, Standard
Using Brake Pedal & Accelerator Pedal
2004 Toyota Matrix XR, FWD, StandardSECTION Using Brake Pedal & Accelerator Pedal
WARNING: This page is about a different car, the 2002 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
- Insert registered master key in ignition lock cylinder. Within 15 seconds of inserting master key into ignition lock cylinder, depress and release accelerator pedal 4 times.
- Within 20 seconds of depressing and releasing accelerator pedal 4 times, depress and release brake pedal 5 times and remove master key from ignition lock cylinder.
- Within 10 seconds of removing master key from ignition lock cylinder, insert sub-key to be registered in ignition lock cylinder.
- Within 10 seconds of inserting sub-key in ignition lock cylinder, depress and release accelerator pedal one time. Ensure SECURITY indicator light flashes. SECURITY indicator light is located just above the fuel gauge on the instrument cluster.
- After one minute, additional sub-key should be registered and SECURITY indicator light should then turn off. If registering additional sub-keys, repeat process starting with step 3 within 10 seconds.
- The registration mode is complete after removing sub-key from ignition lock cylinder within 10 seconds and brake pedal is depressed, or SECURITY indicator light has turned off for at least 10 seconds.
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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.