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2008 Prius HEAT Triangle of Death

Discussion in 'Gen 2 Prius Main Forum' started by LisaHelt, Jul 12, 2018.

  1. LisaHelt

    LisaHelt Junior Member

    Joined:
    May 23, 2017
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    Location:
    Apache Junction, AZ
    Vehicle:
    2008 Prius
    Model:
    Three Touring
    my 2008 Prius had issues last summer in the intense heat here in Phoenix. A couple times I didn’t garage it and when the temp was 112 it would start, but then never go into gear and eventually the triangle of death. If I let it sit overnight (cool off), I could start it in the morning and use it. This year however it happened when it was only 100 (I know, ONLY 100, sad but true). I don’t feel like it’s reliable anymore. It has just over 200,000 miles. Any suggestions?
     
  2. SFO

    SFO Senior Member

    Joined:
    Feb 7, 2017
    5,286
    4,225
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    Location:
    Northern California
    Vehicle:
    2007 Prius
    Model:
    N/A
    Have the DTC/INF codes read and post them here.

    Park in the shade with the windows down if possible.

    Clean the HV battery fan.

    Think about purchasing a NEW main traction battery if you plan on keeping the vehicle longer.
     
    Raytheeagle and jerrymildred like this.
  3. SRQ

    SRQ Member

    Joined:
    Jan 25, 2013
    148
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    Vehicle:
    2008 Prius
    Model:
    N/A
    Have you tried using a windshield cover and rolling down the windows as soon as you start the vehicle to bring the temperature down? Also try the above regarding parking in the shade and cleaning the battery fan.
     
    jerrymildred likes this.
  4. strawbrad

    strawbrad http://minnesotahybridbatteries.com

    Joined:
    Aug 9, 2011
    953
    993
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    Location:
    Minnesota
    Vehicle:
    2005 Prius
    Model:
    II
    Contact Steve at Phoenix Hybrid Batteries.

    Consider yourself fortunate to have an expert in your backyard.
     
    dolj and SFO like this.