Lost your car key or need a spare for your 2000 Toyota Sienna? You might be surprised to learn that you can program a new key yourself without needing a professional scan tool, especially if it’s a brand new key and Engine Control Module (ECM). This guide provides a step-by-step method to program your car key directly. Follow these instructions carefully to ensure successful programming of your new key.
Programming a New Key and ECM
This procedure is for when you are using a brand new key and ECM for your 2000 Toyota Sienna.
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Check the Security Indicator: First, ensure that the SECURITY indicator light on your instrument panel is flashing. This light is typically located on the left side.
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Insert the New Key: Insert your new, unprogrammed ignition key into the ignition lock cylinder. At this point, the SECURITY indicator light should stop flashing and remain on steadily.
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Initiate Key Registration: Once the key is inserted, the ignition key registration process will begin. You should observe the SECURITY indicator light turn off.
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Complete Registration: After the ignition key registration is successfully completed, the SECURITY indicator light will come back on and remain steady. Now, remove the ignition key from the ignition lock cylinder.
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Verify Registration: To confirm successful registration, check the SECURITY indicator light after removing the key. If the system is operating correctly, the SECURITY indicator light should start flashing again. If the registration was unsuccessful, and the Engine Control Module (ECM) did not enter automatic registration mode, the SECURITY indicator light will display a code 2-1. If you insert a key that is already registered, a code 2-2 will be displayed.
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Program Additional Keys (Optional): If you need to program more keys, repeat the process from step 1 for each additional new key. If you do not need to program any more keys, proceed to the next step to complete the automatic registration mode. The SECURITY indicator light should turn off once the last key (sub-key) is registered.
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Finalize Registration: To finalize the automatic registration mode, depress and release the brake pedal at least five times within a 15-second period. Alternatively, you can complete this step using a Toyota scan tool connected to the Data Link Connector (DLC) No. 3, if available.
Security indicator light location on 2000 Toyota Sienna instrument panel
Programming an Additional Master Key
If you already have a registered master key and wish to add an additional master key, follow these steps. Note that these steps should be performed sequentially after the previous procedure if you are programming a new system and adding master keys.
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Insert Registered Master Key: Insert your currently registered master key into the ignition lock cylinder.
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Depress Accelerator Pedal: Within 15 seconds of inserting the master key, depress and release the accelerator pedal five times.
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Depress Brake Pedal: Within 20 seconds after manipulating the accelerator pedal, depress and release the brake pedal six times. Remove the master key from the ignition lock cylinder.
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Insert Key to be Registered: Within 10 seconds of removing the registered master key, insert the new master key that you wish to register into the ignition lock cylinder.
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Depress Accelerator Pedal (Once): Within 10 seconds of inserting the new master key, depress and release the accelerator pedal one time. Confirm that the SECURITY indicator light is flashing on the instrument panel.
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Wait for Registration: Allow approximately one minute for the additional master key to be registered. The SECURITY indicator light should turn off once registration is complete.
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Program More Master Keys (Optional): If you need to register additional master keys, repeat the process starting from step 8 within 10 seconds.
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Complete Registration Mode: The registration mode is complete after you remove the master key from the ignition lock cylinder within 10 seconds and either depress the brake pedal or the SECURITY indicator light has turned off for at least 10 seconds.
By following these detailed steps, you should be able to successfully program a car key for your 2000 Toyota Sienna without the need for specialized tools in these specific scenarios.
