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

Keyfob Battery?

Discussion in 'Gen 2 Prius Main Forum' started by Shin Chan, Oct 28, 2010.

  1. Shin Chan

    Shin Chan Junior Member

    Joined:
    Sep 11, 2008
    56
    6
    0
    Location:
    Sacrameto, California
    Vehicle:
    2006 Prius
    I have a generation II

    and one of my keyfobs will not work, the spare works. Do these things have a battery? If so how do you open the keyfob. I thought I was mechanically inclined, but after spending the last 15-20 minutes I am stumped on if this thing opens:mad:.

    Please help before I get drastic and use a BFH to open fob.
     
    #1 Shin Chan, Oct 28, 2010
  2. redrockprius

    redrockprius redrockprius

    Joined:
    Jan 31, 2007
    167
    30
    0
    Location:
    Murray, UT
    Vehicle:
    2007 Prius
    Model:
    N/A
    The procedure is explained in the Owners Manual. In the 2007 manual, it is in Section 2 on page 38-39, along with illustrations. It involves first removing the mechanical key, then sliding the cover off to expose the battery cover and its four tiny screws that must be removed to access the battery, which is a CR2032 lithium type.
     
    #2 redrockprius, Oct 28, 2010
  3. Shin Chan

    Shin Chan Junior Member

    Joined:
    Sep 11, 2008
    56
    6
    0
    Location:
    Sacrameto, California
    Vehicle:
    2006 Prius
    Thanks, have manual in front of me now. BUT still the fob is not coming apart. Will keep at it.

    Got it apart. spilled coffee acts like glue FYI
     
    #3 Shin Chan, Oct 28, 2010
  4. krg03

    krg03 Not expert, just experienced

    Joined:
    Jul 27, 2010
    246
    31
    0
    Location:
    so cal
    Vehicle:
    2007 Prius
    Model:
    II
    The screws are a pain. I left mine out for the next time. The covers and interlocking/key holds everything together fine.
     
    #4 krg03, Oct 28, 2010
  5. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    108,908
    49,490
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    i think it's worth opening them once a year just to keep everything from freezing together.
     
    #5 bisco, Oct 28, 2010
  6. GuamKelly

    GuamKelly Member

    Joined:
    Sep 17, 2010
    274
    68
    0
    Location:
    Ipan, Guam
    Vehicle:
    2008 Prius
    Model:
    III
    Did you have to re-program anything after swapping out the battery? Mine are probably due after 3 years -- in fact I've noticed that the range seems awfully short.

    I've already changed the 12V (for a much better Optima -- THANKS Prius Chat mmebers!), will do the fobs and then sacrifice a goat over the traction battery.
     
    #6 GuamKelly, Oct 29, 2010
  7. milazotes

    milazotes New Member

    Joined:
    Apr 27, 2008
    22
    6
    0
    Location:
    York, PA
    Vehicle:
    2005 Prius

    I replaced my first battery after 5 years with a Lithium matching the OEM description but that one is already fading. I can tell from the unlock signal range. No reprogramming necessary though
     
    #7 milazotes, Oct 29, 2010
(You must log in or sign up to post here.)