Engine light on.....

Discussion in 'Prius v Care, Maintenance and Troubleshooting' started by cucaio90, Mar 16, 2017.

  1. cucaio90

    cucaio90 Junior Member

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    ....my Prius V has only 11,000 miles on it and the engine light suddenly came on.The first thing I checked was the fuel cap....and yes it was not fully tight.I went along tight back on making sure I heard the famous click.To my surprise after that the engine light was still on.Went to Auto Zone to have them check out why the engine light was on, they never hooked it up to a computer and I was told that it would take up to 20 miles miles of driving before the engine light goes off.Now I do not know if that's true or not but I don't really want to spend half of my morning to a Toyota dealership to have them check out why the engine light is on since I fixed the problem myself.So does it really take 20 miles of driving to see the engine light go off.
     
  2. bisco

    bisco cookie crumbler

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    it might take a few power up's and off's to clear it. give it a week and relax, you're fine.
     
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  3. alanclarkeau

    alanclarkeau Senior Member

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    I'd be surprised if the fuel cap brought the "Check Engine Light" - I guess you've checked oil & coolant? I'd not mess with it too long - just in case something is really wrong.
     
  4. bisco

    bisco cookie crumbler

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    really? i thought it was a classic scenario. what warning does the loose fuel cap give?
     
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  5. mikefocke

    mikefocke Prius v Three 2012, Avalon 2011

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    Not unusual for the ECU to have to relearn and it takes several driving cycles. Still, would be nice to know exactly what the code was that caused the initial problem and to clear the code.
     
  6. Air_Boss

    Air_Boss Senior Member

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    No warning of a loose gas cap, just the CEL if it's detected. And cap (on the 2012 v, at least) does not 'click', it just snugs up tight.
     
  7. bisco

    bisco cookie crumbler

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    really? i wonder why they eliminated it? it's the best way to tell if it's tight enough.
     
  8. Air_Boss

    Air_Boss Senior Member

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    No idea. By comparison, the Honda cap snugs up then gives you a solid three-clicks to be sure.
     
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  9. bisco

    bisco cookie crumbler

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    i've had cars with multiple clicks as well. seems they reinstalled it on the o/p's car, must have realized the error of their way.
     
  10. cucaio90

    cucaio90 Junior Member

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    ....I guess the Auto Zone guy was right,after less 20 miles and a new start, the engine light turned off.
    Thanks you guys for your answers and never give up hope when your engine light turns on.
     
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  11. TomNat

    TomNat Junior Member

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    Having just been through the engine light from loose fuel cap & the dealer resetting the codes, we hope that Toyota will add another light for a loose fuel cap, since the other check engine light problems are potentially a lot more serious. Waiting an unknown number of days for the engine light to go off & hoping that it is just the loose fuel cap seems very risky.

    Also on our 2015 v, the fuel cap does one click when tight.
     
  12. jerrymildred

    jerrymildred Senior Member

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    It's probably in your manual. This is from my 2013 PiP manual.

    ■ If the malfunction indicator lamp comes on while driving
    First check the following:
    ●Is the fuel tank cap loose? If it is, tighten it securely.
    The malfunction indicator lamp will go off after several driving trips.
    If the malfunction indicator lamp does not go off even after several trips, con- tact your Toyota dealer as soon as possible. ​

    If the fuel door is open, there's an actual message for that.
     
  13. Sooner Al

    Sooner Al Active Member

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    Same in the 2016 Prius v manual...

    FWIW I get one click when I lock the gas cap...
     

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  14. catgic

    catgic Mastr & Commandr Hybrid Guru

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    I have a 2012 Prius v 5 ATP. The odometer is about to turn 73,000-miles. My v(vee)'s "Check Engine" just came on today.

    I checked the gas cap, and it may/could NOT have been "One Clicked - Locked," as the note on the Gas Cap instructs that should be "Tighten To One-Click...Or Else The 'CHECK ENGINE' Light May Come On." I loosened the Gas Cap, and then re-tightened it until I heard the "Locking One-Click." I am now in the "Multiple Power-Up/Trips" cycle to see if the "Check Engine" will go OFF, after a few Power-Ups & Trips.
     
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