Triangle exclamation mark light/beep over speed bumps?

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by PAULAD, Jun 14, 2022.

  1. PAULAD

    PAULAD New Member

    Joined:
    Jun 7, 2022
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    Location:
    TN
    Vehicle:
    2010 Prius
    Model:
    Base
    I have a 12 yrs old prius with brake, abs, and skid lights on. So I undo the reset tire button under the steering wheel to get a clear path to the diagnostic cable port to use the safety pin method. I lost the screws, but it seems ok clipped in without them. I recently got new tires. Never knew of this button before so I push it. Right when I go over the large speed bumps at the dealership who is about to test drive for a trade in value, the triangle exclamation mark lower left corner flashes and beeps a couple times. It goes away after about 10 seconds or if I turn off the car and restart it. So this is what is lowering the trade in amount. Anyone know what may be going on?
     
    #1 PAULAD, Jun 14, 2022
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    the triangle means there are trouble codes to be read that will lead you along the correct path for diagnosis and repair.
     
    #2 bisco, Jun 14, 2022
  3. Eddie25

    Eddie25 Active Member

    Joined:
    Dec 31, 2018
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    Location:
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    Vehicle:
    2011 Prius
    Model:
    III
    The wheel speed sensor wires are SUPER sensitive to being routed weirdly, and those can cause the abs, skid, and brake lights to come on. Since you just got tires I would consider that a possibility. I don't think that explains the going over bumps situation, but I thought I'd throw that out there.
     
    #3 Eddie25, Jun 15, 2022
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