1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Key in ignition alarm

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Big Morton, Jan 16, 2015.

  1. Big Morton

    Big Morton New Member

    Joined:
    Dec 28, 2014
    4
    0
    0
    Vehicle:
    2007 Prius
    Model:
    N/A
    I'm hoping that one of you learned technical gurus can help with this problem. In summary, the following occurs:
    1. Car performs as per normal. Removing the key from ignition slot, open the drivers door to exit - no alarms sound.
    2. After some time, go through the same motions but when key is removed and drivers door is opened, the key in ignition alarm sounds sporadically
    3. Some time further, going through the same process, the alarm sounds every time I remove the ignition key and open the door.
    4. Shortly after, no power in starter battery and cannot unlock doors or boot.
    5. Toyota people look blankly when I try to explain. They take the car, charge the battery, tell me they cannot find any power drain, tell me that what I hear is the door open alarm and we start the process all over.

    This has been ongoing for some months. I would appreciate any assistance.
     
    #1 Big Morton, Jan 16, 2015
  2. JC91006

    JC91006 Senior Member

    Joined:
    Nov 10, 2013
    16,470
    8,383
    0
    Location:
    Los Angeles, CA
    Vehicle:
    2008 Prius
    Model:
    II
    Do you have a smart key with SKS system? Maybe you can avoid using the key slot, that may be an issue.
     
    #2 JC91006, Jan 16, 2015
  3. 69shovlhed

    69shovlhed Surly tree hugger

    Joined:
    May 13, 2012
    2,170
    746
    0
    Location:
    Delaware
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Premium
    have you changed the remote battery? is the 12v battery original? I would want to make sure those are both good.
     
    #3 69shovlhed, Jan 16, 2015
  4. fuzzy1

    fuzzy1 Senior Member

    Joined:
    Feb 26, 2009
    17,115
    10,044
    90
    Location:
    Western Washington
    Vehicle:
    Other Hybrid
    Model:
    N/A
    My first guess would be that the switch that determines whether or not the key is in the slot, has gone bad.

    Not being a GenII owner, I'm not sufficiently familiar with that slot system. Is there a switch tab inside to be jiggled for testing, or is not extending properly when the fob is removed? Can the car be improperly started with the fob adjacent to, but not actually seated in, the slot?
     
    #4 fuzzy1, Jan 16, 2015
  5. Big Morton

    Big Morton New Member

    Joined:
    Dec 28, 2014
    4
    0
    0
    Vehicle:
    2007 Prius
    Model:
    N/A
    New battery in fob, second new starter battery.
     
    #5 Big Morton, Jan 16, 2015
  6. Big Morton

    Big Morton New Member

    Joined:
    Dec 28, 2014
    4
    0
    0
    Vehicle:
    2007 Prius
    Model:
    N/A
    I'm hoping that one of you learned technical gurus can help with this problem. In summary, the following occurs:
    1. Car performs as per normal. Removing the key from ignition slot, open the drivers door to exit - no alarms sound.
    2. After some time, go through the same motions but when key is removed and drivers door is opened, the key in ignition alarm sounds sporadically
    3. Some time further, going through the same process, the alarm sounds every time I remove the ignition key and open the door.
    4. Shortly after, no power in starter battery and cannot unlock doors or boot.
    5. Toyota people look blankly when I try to explain. They take the car, charge the battery, tell me they cannot find any power drain, tell me that what I hear is the door open alarm and we start the process all over.

    This has been ongoing for some months. I would appreciate any assistance.
     
    #6 Big Morton, Jan 26, 2015
  7. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    107,762
    48,974
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    methinks you need a new 12 volt battery. don't go by how many you've put in or how old they are, test it. it could be a battery connexion as well, especially negative to body connexion.(y)
     
    #7 bisco, Jan 26, 2015
    Last edited: Jan 26, 2015
  8. Big Morton

    Big Morton New Member

    Joined:
    Dec 28, 2014
    4
    0
    0
    Vehicle:
    2007 Prius
    Model:
    N/A
    Thanks bisco, a new battery is on order. It's the 3rd one but I suspect it was faulty from day one.
     
    #8 Big Morton, Jan 26, 2015
  9. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    107,762
    48,974
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    all the best.(y)
     
    #9 bisco, Jan 26, 2015
(You must log in or sign up to post here.)