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pressing the brake, but the green light never comes on

Discussion in 'Gen 1 Prius Plug-in 2012-2015' started by J2014, Jun 8, 2014.

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  1. J2014

    J2014 Junior Member

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    Does anyone know what causes this? The car is less than two weeks old and this ishappening.
     
    #1 J2014, Jun 8, 2014
  2. bisco

    bisco cookie crumbler

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    what is happening?
     
    #2 bisco, Jun 8, 2014
  3. rogerv

    rogerv Senior Member

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    Are you referring to the "ready" light when starting out? Or the hill holding feature? Not sure what green light are you looking for, and under what conditions are you expecting it?
     
    #3 rogerv, Jun 8, 2014
  4. bisco

    bisco cookie crumbler

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    stop light?
     
    #4 bisco, Jun 8, 2014
  5. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    (I am assuming READY, if not, ignore me)

    The 12 volt battery does a CPU check of all systems and if all is well, it closes relays to allow the big battery online, then the 12 volt battery is done for the trip and can be recharged.

    If the salespeople left your Prius PHV in Accessory mode, or off with doors open, or committed other stupidities with the 12 volt battery being drained while they yammered on in the showroom, then your 12 volt battery may be shot. Make them install a new one.
     
    #5 JimboPalmer, Jun 8, 2014
    Andyprius1 likes this.
  6. retired4999

    retired4999 Prius driver since 2005

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    Brake light switch?
    Press brake a little harder, or have dealer check.
     
    #6 retired4999, Jun 8, 2014
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  7. bisco

    bisco cookie crumbler

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    is that the 'go' lite?
     
    #7 bisco, Jun 8, 2014
  8. retired4999

    retired4999 Prius driver since 2005

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    Yep!!!!:D
     
    #8 retired4999, Jun 8, 2014
  9. bisco

    bisco cookie crumbler

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    you won't go with yer foot on the break!
     
    #9 bisco, Jun 8, 2014
  10. xliderider

    xliderider Senior Member

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    Probably a faulty switch in the brake assembly. The switch is there to, normally, make sure you are pressing the brake pedal when trying to make the car Ready. If the switch is faulty, the ECU thinks you aren't pressing the brake pedal and won't allow the car to go into Ready mode.

    SCH-I535
     
    #10 xliderider, Jun 8, 2014
  11. J2014

    J2014 Junior Member

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    It's the green light on the power button. Sorry I wasn't clear earlier.

    When I press the break the green led does not light up.
     
    #11 J2014, Jun 8, 2014
  12. J2014

    J2014 Junior Member

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    What is an ECU?
     
    #12 J2014, Jun 8, 2014
  13. xliderider

    xliderider Senior Member

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    ECU = electronic control unit, AKA a computer chip or module. There are many ECU modules in all modern cars to control and monitor the functions throughout the vehicle.

    SCH-I535
     
    #13 xliderider, Jun 8, 2014
  14. bisco

    bisco cookie crumbler

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    does the car start? if not, you may need to press harder on the brake pedal.
     
    #14 bisco, Jun 8, 2014
  15. J2014

    J2014 Junior Member

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    We have to reset it by doing the 15sechold on the power button...

    I hear there was a ecu recall recently. I purchase the car next than two weeks ago. Would they be selling the vehicle without the software update? I'll bring it into the shop on Wednesday.
     
    #15 J2014, Jun 8, 2014
  16. xliderider

    xliderider Senior Member

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    Negative, all vehicles on the dealer lot have to have the new software update prior to sale.

    SCH-I535
     
    #16 xliderider, Jun 8, 2014
  17. J2014

    J2014 Junior Member

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    Thanks xlide .. We will find out on Wednesday. I hope we can still drive it there.
     
    #17 J2014, Jun 8, 2014
  18. CaliforniaBear

    CaliforniaBear Clearwater Blue Metallic

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    When you press on the brake there is a green light just above the word "POWER" in the power button that should go on. Is that what is not happening?
     
    #18 CaliforniaBear, Jun 8, 2014
  19. J2014

    J2014 Junior Member

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    The green light does not come on in the power button.
     
    #19 J2014, Jun 8, 2014
  20. bilbo04096

    bilbo04096 Member

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    Guys, what's this 15 second hold reset maneuver?
     
    #20 bilbo04096, Jun 8, 2014
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