2007 Toyota Prius VSC dash light

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Ed56, Dec 22, 2019.

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  1. Ed56

    Ed56 Junior Member

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    I have a 2007 Toyota Prius, the owner manual states that when you turn ignition on all dash lights including VSC light should turn on momentarily and then stay off. When I turn car on all dash lights show except the VSC light and I don’t know if the system was turned off or how to turn it back on. Also if I hold the brake pedal and push start twice, again all lights illuminate except the VSC light. A number of times driving on wet roads or icy roads the slippery light flashes on dash and although I have just installed all year Michelin tires, the car does slide a bit. Does any one know if the VSC system is on or off. Thanks
     
    #1 Ed56, Dec 22, 2019
    Last edited: Dec 23, 2019
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  2. davecook89t

    davecook89t Senior Member

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    The VSC system on the Gen 2 Prius cannot be turned off. If the dash light is not lit under normal driving, it is functioning properly. You don't have to worry unless it turns on and stays on.
     
    #2 davecook89t, Dec 22, 2019
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  3. Ed56

    Ed56 Junior Member

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    Thanks for the VSC procedure on Gen II cars. I was just concerned since it was not showing up on dash when key was put into ignition to turn the car on
    Best wishes
     
    #3 Ed56, Dec 22, 2019
  4. davecook89t

    davecook89t Senior Member

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    Hmm, I'm not sure about that then. I have not seen anyone on here talking about replacing burnt out bulbs for dash lights. I'm guessing they are LEDs and just don't burn out. In your first post you said that the VSC light does turn on when you turn on the car. Are you saying it does not turn on only when you insert the key as opposed to using the Smart Key system to start it with the key in your pocket?
     
    #4 davecook89t, Dec 22, 2019
  5. dolj

    dolj Senior Member

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    Just to clear up something, as I can't really understand clearly what it is that is happening for the OP.

    The self-check routine does not occur when you insert the key in the slot. It occurs when, with the key inserted (with non-SKS) in the slot, you have your foot on the brake and press the power button once. As part of the startup, the computer will illuminate all the lights for about 1 (or 2) seconds, except the Master Caution Light, then all the lights should then turn off.

    So can the OP clarify what behavior is causing concern?

    And btw, if you leave your foot off the brake and press the power button twice, all the lights illuminate (again except for the Master Caution Light) and stay on.
     
    #5 dolj, Dec 23, 2019
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  6. Ed56

    Ed56 Junior Member

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    #6 Ed56, Dec 23, 2019
  7. Ed56

    Ed56 Junior Member

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    Just to clarify, You are right , all lights should illuminate for 1 or 2 seconds, if you hold brake and push start, or they should all illuminate when you have your foot off the pedal and push start bottom twice, in my case I am missing the light for VSC in both cases.
    Thanks
     
    #7 Ed56, Dec 23, 2019
  8. dolj

    dolj Senior Member

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    That would suggest the light that illuminates that LED on the light cluster has failed.
     
    #8 dolj, Dec 23, 2019
  9. Patrick Wong

    Patrick Wong DIY Enthusiast

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    Or if the OP’s car is not at least an Option Package 2 model, it does not have VSC.
     
    #9 Patrick Wong, Dec 23, 2019
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  10. Ed56

    Ed56 Junior Member

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    Thanks for the technical info, here is a link that’s shows how to get to instrument cluster panel, there is no light bulb just a circuit board at the end, so not sure if we have to replace the whole board or try to fix the location where VSC light has failed
     
    #10 Ed56, Dec 23, 2019
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