What to do with my 09 Prius?

Discussion in 'Gen 2 Prius Main Forum' started by cipsaz187, Sep 3, 2025 at 9:43 AM.

  1. cipsaz187

    cipsaz187 Member

    Joined:
    Feb 19, 2014
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    Vehicle:
    2012 Prius
    Model:
    Four
    11 years of ownership, 145k miles, clean and reliable car. The engine and trans are rock solid as far as I can tell, but here is what I am getting now...

    Chirping noise while driving or idling, it doesn't matter, every 7-10 seconds. It used to be only while opening the door or braking. Sounds like the brake actuator might be the culprit.

    I got the CEL after changing the 12V battery in May. Stopped by AutoZone to get it checked.

    P1121- the 3 way coolant valve might be the one to replace?
    C1241- not sure about this one...

    These codes aren't really related to a brake actuator issue.. Also the hybrid battery is on the edge too. Overall, I am looking at the hefty bill here. Drive it, sell it or fix it? I am looking forward to fixing it.
     
  2. priumium

    priumium Junior Member

    Joined:
    Sep 8, 2024
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    Location:
    Sweden
    Vehicle:
    2006 Prius
    Model:
    Upgrade
    That last sentence makes it easy to choose: Fix it!
     
  3. 97trophy

    97trophy New Member

    Joined:
    Sep 29, 2024
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    Location:
    77382
    Vehicle:
    2005 Prius
    Model:
    Two
    Only owned ours for a year and it does the same. Previous owner said it had done that for years.

    Keep it. Too many good things about these cars to outweigh your few issues.
     
  4. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    '09 is a beast, just broken in at 145k. i'd do whatever it takes, even if i didn't want it, it's worth a fortune on the market in decent condition.
     
  5. bisco

    bisco cookie crumbler

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    Plug-in Base