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2004 Prius intermittent starting issues over two years

Discussion in 'Newbie Forum' started by jamielynnsky, Mar 22, 2016.

  1. jamielynnsky

    jamielynnsky New Member

    Joined:
    Mar 21, 2016
    3
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    Location:
    NY
    Vehicle:
    2004 Prius
    Model:
    N/A
    I have starting issues that are getting more frequent; it "half-starts", the display lights up but no "READY" light and you can't engage the gears. The start button lights up orange. It never happens during the winter. It does happen during the summer, sometimes hot weather sometimes humid weather, but no clear consistent factors. I use my car all day long and start it like 10 times a day. This problem is getting worse in that it's taking longer before I can start it after turning it on and off several times in a row. It always eventually starts. I bought the car used around 6 years ago and have never changed the 12v battery. I hope to get some opinions about possible causes! Thanks!
     
    #1 jamielynnsky, Mar 22, 2016
    Last edited: Mar 23, 2016
    Jon Senum and ozmatt like this.
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    108,987
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    welcome! how old is the 12 volt battery?
     
    #2 bisco, Mar 22, 2016
    Last edited: Mar 22, 2016
  3. jamielynnsky

    jamielynnsky New Member

    Joined:
    Mar 21, 2016
    3
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    Location:
    NY
    Vehicle:
    2004 Prius
    Model:
    N/A
    I bought it used about 6 years ago or so and I've never changed it.
     
    #3 jamielynnsky, Mar 22, 2016
    kenoarto likes this.
  4. kenoarto

    kenoarto Senior Member

    Joined:
    Feb 7, 2006
    1,413
    398
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    Location:
    Chicago, IL
    Vehicle:
    2005 Prius
    Model:
    II
    get that battery replaced! then report back.
     
    #4 kenoarto, Mar 22, 2016
  5. ozmatt

    ozmatt Active Member

    Joined:
    Nov 27, 2015
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    Location:
    australia
    Vehicle:
    2010 Prius
    Model:
    One
    hi and welcome, try the 12v first but it may end up being the brake pedal switch.

    does your car have cruise control and if so does it work
     
    #5 ozmatt, Mar 24, 2016
  6. jamielynnsky

    jamielynnsky New Member

    Joined:
    Mar 21, 2016
    3
    3
    0
    Location:
    NY
    Vehicle:
    2004 Prius
    Model:
    N/A
    Hi thanks, yes it has cruise control and the last time I used it it worked but I almost never use it.
     
    #6 jamielynnsky, Mar 24, 2016
  7. ozmatt

    ozmatt Active Member

    Joined:
    Nov 27, 2015
    604
    252
    0
    Location:
    australia
    Vehicle:
    2010 Prius
    Model:
    One
    hi.. Just thought I would mention it, my car has a bad brake pedal switch which causes intermittent "ready" and the cruise control plays up..
     
    #7 ozmatt, Mar 24, 2016
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