1. Kelli Ann

    Kelli Ann Junior Member

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    Hello All,
    I've been look over information on Key Fobs for my 2008, still new to me since March 2016, Prius. I used to be able to walk up to the car with the fob in my purse, pocket or hand and get into the car or even start it up. Now it is not doing that. I can hit the Unlock button and get in, sometimes I can start it, only if the green lights are noted on the Start Button. The Lock button seems to lock it as well

    I am thinking and seeing from other threads that this is a Battery Issue. Yes???

    Thank you!
     
  2. JC91006

    JC91006 Senior Member

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    Yes try changing the battery. Do you have a spare to try?
     
  3. The Electric Me

    The Electric Me Go Speed Go!

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    The simplest, easiest, and cheapest first step would be to change the fob battery.
    There are threads in Prius Chat, along with links on how to do this. Relatively painless and easy.
    I would recommend just going to youtube and looking up a video on how to DIY.

    If this solves your issues?
    Great.
    If you continue to have problems?
    At least you can cross dying Fob Battery off your list of potential causes.

    I'd bet on it being the battery dying.
    Good Luck.
     
  4. bisco

    bisco cookie crumbler

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    then try the 12 volt battery if it's not the fob.
     
  5. 'LectroFuel

    'LectroFuel Senior Member

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    Maybe the key sensor in the car is weak, or broken? Mine used to be quicker at recognizing my hand in the door handle.
     
  6. Kelli Ann

    Kelli Ann Junior Member

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    Hi All,
    Thank you!
    I have changed the battery in both Key Fobs. They work, but the Smart Key or auto lock is not working. I really liked walking away and having it lock, especially at the end of the day.

    Did I see that the 12 volt battery may cause this?
     
  7. Kelli Ann

    Kelli Ann Junior Member

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    OMG - Fixed.
    Was reading about other issues about Key fobs on this site and saw the item about the red light on the fob. If it is blinking when you hit a button on the fob - the battery has power. Someone on this site mention a button, SKS button (was it in or out) at the knee under the steering wheel.

    Well, went and checked this out. There was a button and it was pushed in, I pushed it and it came out. I got out of the car, locked it with the fob button. Then walked up to it and pulled the handle and IT WORKS NOW. I was going nuts. I was really having issues with the hatch and groceries having to hit fob button several time or opening up the drivers door and using the power UNlock to open the hatch.

    So - if you are having fob issue
    1) check for red light on the fob - if nothing
    2) change battery
    3) if SKS entry or start is not working STILL - check the SKS button at the knee under the steering wheel.

    I'm feeling Educated.

    Thank you all and am truly thankful for this site.

    Now to figure out why such a whine when accelerating and when the gas engine stops it sounds kind of rough.

    THANK YOU THANK YOU
     
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  8. bisco

    bisco cookie crumbler

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    pleasure.
     
  9. 'LectroFuel

    'LectroFuel Senior Member

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    The rough engine cut off is probably normal. Mine has done it for years.
     
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  10. jermandubber

    jermandubber New Member

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    I could use a little advice. I just purchased an '08 Prius a few days ago. It has the SKS tech, button under the steering wheel depressed. The fobs allow me to proximity unlock/lock driver, passenger, tailgate doors. The fobs also allow me to proximity start the vehicle. Neither fob will allow me to use the lock, unlock, and panic buttons. Both batteries test in the good range, plus they both work for proximity options.

    Does anyone have any idea why this might be happening with both fobs?

    I've used the search feature here, but found nothing specific to the issue. I have an appointment with the dealership on Thursday. Service records show they've worked on the fobs about 3 times with similar issue over the past 9 years, the last time being just under 3 years ago.

    I'm also going to have them look at the mechanical keys, as neither are easy to use in the door. This was also worked on a little under 3 years ago.

    Thanks in advance!
     
  11. bisco

    bisco cookie crumbler

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    congrats and welcome!
    no idea, will be interesting to see what they find. can you find what they have fixed on them in the past?
     
  12. jermandubber

    jermandubber New Member

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    The service records come from the Toyota website, so they aren't extremely descriptive.

    In 2010, this is what they've said for the fix:

    TRIM ELECTRICAL ~|~KEY FOB UNLOCK BUTTON IS INOP ~|~FOUND KEY FOB BUTTON HAS BEEN PUSHED IN CAUSING REMOTE TO BE INOP.REPLACED REMOTE. ~|~REPLACED REMOTE 830621 .3

    In 2014, this is what they've said:

    BODY ELECTRICAL ~|~CUSTOMER REQUESTS NEW KEY CUT/PROGRAMMED PARTS IN STOCK AS PER BRADY-KNOWS NEED TO SHOW PROOF OF OWNERSHIP FOR KEY ~|~. ~|~REPLACE BATTERY


    We shall see, indeed.

    Thanks for the welcome, this forum is overwhelming with the amount of information. I'm excited to delve through things.

    Thanks for the congrats, as well! This baby just broke 100k miles. I'm hopeful I have a couple hundred more to go.
     
  13. Kelli Ann

    Kelli Ann Junior Member

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  14. jermandubber

    jermandubber New Member

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    It turns out the 'unlock' buttons on both fobs were stuck in the depressed setting, disabling any other functions. It sounds like it was easily fixed in the shop, which means if it happens again, I'll most likely be able to figure it out.

    The mechanical key issue, they stated, was most likely due to the keys and the locks never having been used. They said they generally advise customers to perform a lock/unlock cycle 20 times or so with a new set to 'break it in'. He worked on it while I was in there and now it locks/unlocks with ease.

    $80 to get all that figured out, plus the recommended servicing for the age/miles on the vehicle. Not too shabby. I took the opportunity to read the pamphlets on the new priuses. Soooo coool!
     
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  15. ILuvMyPriusToo

    ILuvMyPriusToo Senior Member

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    Welcome! If it happens again, you might consider buying a new fob casing - just get the right model. The inside electronics are self contained and easily can be moved to the new housing (literally the plastic case with buttons) along with the removable mechanical key. Easy DIY job - not much harder than changing the fob battery.
     
  16. dolj

    dolj Senior Member

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    Don't forget also, you need to swap over the RFID chip from the old case to the new one.
     
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  17. jermandubber

    jermandubber New Member

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    Thanks both of you! I'll keep that in mind!