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Why am I unable to register the same key via Techstream?

Discussion in 'Gen 3 Prius Technical Discussion' started by Slavatheshrimp, May 25, 2024.

  1. Slavatheshrimp

    Joined:
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    2015 Prius
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    IV
    Both keys are identical. I did notice some numbers on the motherboard itself but not sure if that is the factor. One shows 8/12 one shows 3/12. Other than that, it looks identical.

    upload_2024-5-25_13-13-35.png

    When placing the key on the passenger seat post registration, the registration process fails.

    What am I doing wrong?

    Please watch the video below, it's only a minute long.



    Thanks in advance.
     
  2. Tombukt2

    Tombukt2 Senior Member

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    This is something you bought online I guess or just an extra remote does it have the gray sticker in it that goes on the side when you slide the cover up?
     
  3. Tombukt2

    Tombukt2 Senior Member

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    That might give you some numbers for manual entry . Not sure how TS does it
     
  4. Slavatheshrimp

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    My brother in law gave me this key since he sold his prius. Neither of the keys in the video have any gray stickers.
    upload_2024-5-25_13-28-42.png
    upload_2024-5-25_13-28-33.png
     
  5. Carall

    Carall Member

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    A used Gen 3 key must first be unlocked before it can be programmed on another prius.
     
  6. Slavatheshrimp

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    Appreciate the response. How does one go about unlocking a used key?
     
  7. Carall

    Carall Member

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    I use this tool


    but there is a cheaper option via cell phone
     
  8. Slavatheshrimp

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    Looks like the physical hardware is still required?