How to Program a New Key Fob for Full SKS Functionality

Discussion in 'Gen 2 Prius Main Forum' started by usnavystgc, Oct 29, 2013.

  1. Reilly

    Reilly New Member

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    Just had a very weird experience with this (including the car dying and rolling backwards!).

    I was replacing my silver logo SKS for my 2008 Prius bought from a legitimate site online. Everything went well up until Step 9C where I push the lock button on the new FOB. When I did that it locked/unlocked the doors 3 times. I thought this meant that it worked! But after opening/closing the door to end the programming, I tried the lock/unlock buttons and nothing. Same with keyless entry. But I could insert the new key to start the car so at least that worked.

    I read that some people had to do Step 9B twice (press and hold the lock/unlock buttons on the new FOB) so I gave that a try and the same thing happened. Then I tried it again, this time putting the FOB in after all the steps as opposed to opening/closing the door. Still nothing.

    A little later I went to go drive the car and was going to use my old FOB that still worked. The lock/unlock buttons didn't appear to be working right. They would kind of make a stuttering noise and eventually stopped doing anything and the car died.

    I jumped the car with a small battery jump starter, the car came to life and I inserted the old FOB into the key holder and tried to turn on the car. All of the lights on the dash lit up and I noticed that there was a message on the display screen. It said something about how "There was a problem..." but then the car died and I couldn't read it. I tried jumping it again - with no luck.

    Then when I was standing outside of the car about 30 seconds later, it made a little noise and started to roll down my driveway in reverse (there's a small decline in the driveway and it started to pick up speed). I jumped in, hit the brake and put on the emergency brake.

    Now the car has been sitting in my driveway, completely dead (no blinking lights on the dash). I tried using the jump starter again with no luck.

    Anybody seen something like this before?
     
  2. Reilly

    Reilly New Member

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    Update: I was able to jump the car and get it started again. Figured it might have just had a low battery, so I drove it around for awhile and all seemed good.

    I found another post on here with updated instructions for Steps 9-10 and was going to attempt to try it again.

    I made it to Step 7 where I hit the power button, but the car died again (all the lights went off and the check engine light was very faint and then eventually went out). I used the battery jumper to give it a little power and I was able to see the warning message on the display. It said " Caution. There is a problem with the transmission "P" lock mechanism. Park your car on a flat surface and fully apply the parking brake". After jumping the Prius with another car, the message disappeared and everything was back to normal.

    I guess I'll take the key to the toyota dealership and see if they can program it for me. Does anyone know if they would be doing the same method I've tried or would they be using a computer to program it?
     
  3. dolj

    dolj Senior Member

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    Seeing as you clearly have 12 V battery issues, get the battery checked and/or charged and/or replaced before trying anymore programming. You don't want to brick your new key fob because you ran out of power halfway through the process.

    Once you have established you have a good working 12 V battery (or acquired a new one), then have another go at the programming.

    Another idea would be to put the 12 V battery on the charger while you do the programming, and then you should not run out of power.

    PS Start using your parking brake, that is what it is for.
     
    #603 dolj, Jan 16, 2020
    Last edited: Jan 16, 2020
  4. Reilly

    Reilly New Member

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    Thanks Dolj! You're right, my battery has been acting up lately. I will get a new one this week and give the programming another go.

    And yes - that was my fault on the parking brake. I do use it every time I park but had disengaged it when I thought the car was working earlier.
     
  5. jeremnyc

    jeremnyc Junior Member

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    I had a working SKS and attempted the chicken dance. I think everything went well till the end when I pressed the wrong button. Now, the original SKS no longer has SKS functionality. It has to be pushed into the dash... both keys lock and unlock the car and will start it in the slot. Ideas? I posted this to a new thread a while back, but never received a reply.

    Here's my December 1 post with the details:
    I performed the chicken dance and my new fob works for starting the car (in the slot) and locking/unlocking using the remote keys. The old (was a functioning smart key before chicken dance) no longer functions as a smart key. It will also lock and unlock the doors and will start the car when inserted into the slot. The new key was completely new and should have taken the "codes." I believe...I made a mistake :cry: in the programming and hit the unlock instead of lock as the step 9 of the chicken dance...and I really hope this wasn't an irreversible error. (From what I read on the forum, it seems like removing keys is not part of the chicken dance functionality, but I am writing to inquire.)

    I have read the forum in search of similar issues and will start with the following:
    1. replace CR2032 battery in old fob (It was replaced recently, so I am skeptical this will work)
    2. press smart key button 2x under the dash.

    Does anyone have additional thoughts? I get the blinking red key icon when I enter the car. When you try to start, you get the yellow key warning (similar to what I would see if I left the car running in the past and exited the car while running.)

    2008 Prius.

    Thanks
     
  6. TMR-JWAP

    TMR-JWAP Senior Member

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    Pressing the smart key button twice merely puts it into the position it was in originally. Kind of like walking up to a locked door, unlocking it, then locking it, and then trying to open it.......

    The button has two positions...in and out. It must be in the "out" position for sks to work...
     
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