How do I Reprogram the Keyless entry for my 2009 Toyota Prius?

Discussion in 'Gen 2 Prius Main Forum' started by Joe Wall, Jun 12, 2019.

  1. Joe Wall

    Joe Wall Junior Member

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    THe light on Fob works when pressed change battery and am frustrated. I get to procedure C (from A) to step 9 which does not lock and unlock. Everything else works
     
  2. RobH

    RobH Senior Member

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    Locksmiths who are part of the Pop-A-Lock franchise have the information and equipment to pair used keyfobs to a different car than they were originally used on. So if your non-functional fob is really working and the correct one for your car, then they could fix you up. If the fob is defective or the wrong one, then it will have to be replaced with a correct one.
     
  3. ericbecky

    ericbecky Hybrid Battery Hero

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    If the key your are trying to program is Used, you will not be able to program it yourself without special equipment.

    The chicken dance will not work with a Used key.

    It must be a New key.
    (Or a Used key that has been reset/virginized to act like a New key.)

    I think you are trying to program a Used key, not a New key, correct?
     
  4. Joe Wall

    Joe Wall Junior Member

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    Yes, it is not a new key and used. So I would need to reset the used key first?
     
  5. ericbecky

    ericbecky Hybrid Battery Hero

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    You will not have the ability to reset (viginize) the key.

    Only options with a used key is to buy Techstream software, a OBDII to USB dongle (like minivci), and a laptop to run it on. All this would cost $100 or so plus and hour or so to load software and drivers.

    Next you would need to payo money to a service so that you can get a response for the reseed procedure. This would likely cost $10-$30.
     
  6. Skibob

    Skibob Senior Member

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    I think your talking rocket science to him at this point. He didn’t even know the keyfob had a battery in it. I think he should get his work done by someone who has some mechanical skills. Like a shop.
     
  7. Joe Wall

    Joe Wall Junior Member

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    I didn't even look. It's more of just asking to make sure not, not knowing. Lol
     
  8. Joe Wall

    Joe Wall Junior Member

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    I have an update. I'm not sure what to do. I took my 2009 Toyota Prius with both sets of keys (Fob) into a locksmith. After driving 30 minutes, he said the battery was low and replaced it. I tried the keyless entry and it still did not work. He indicated the signal was being transmitted and the transmitter he was using worked when he pressed the spare Fob. He told me my options would be to pay $45 to have it reprogrammed with the possibility of it not working. Otherwise, spend like $250 to get a new keyless entry Fob that will certainly work.
     
  9. richmke

    richmke Junior Member

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    You need to know why the key is not working. 1) Was the key paired to the car properly. 2) Was the key a new key, or a used key when it was originally programmed to the car. 3) How many keys have been attempted to be paired to the car. 4) Do you have the right key. 5) Do you have a Toyota OEM, or aftermarket key. etc.

    Do you want to buy the Techstream software and try to program it yourself? If not, I suggest you buy a New Unused OEM Key off Amazon for around $160, and take it to a local dealer with all your keys, and have them program it. If they can get the new key from Amazon working, then quit with the 2 keys. If not (too many keys paired to the car), then they have to reprogram the car, and they might as well get all 3 keys working. I wouldn't trust the locksmith to do it, unless they have experience resetting the car.
     
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