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Cruise control problems

Discussion in 'Prime Technical Discussion' started by Db17, Jan 10, 2017.

  1. Db17

    Db17 Member

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    this has happened a couple of times after about an hour of driving where I can no longer set the Cruise control. So I pull over turn off then back on the car and things work as expected. Has anyone else experienced something like this?
     
    #1 Db17, Jan 10, 2017
    Last edited: Jan 11, 2017
    CaliforniaPrius likes this.
  2. Captmiddy

    Captmiddy Active Member

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    I think this may reference a message within another thread but could you explain what happened? You said this has happened but there is no detail as to what this is. Are you saying cruise is turning off or some other issue?
     
    #2 Captmiddy, Jan 10, 2017
  3. CaliforniaPrius

    CaliforniaPrius Active Member

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    What do you mean "no longer set the cruise control"? Do you mean 1) the cruise control stops functioning as a cruise control by cancelling itself and you end up with driving without it being engaged, or 2) you can't adjust the parameters of the cruise control, ie. top speed, following distance, etc., or 3) after you disengage the cruise control, you can't re-engage it in the way you used to do?
     
    #3 CaliforniaPrius, Jan 10, 2017
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  4. Db17

    Db17 Member

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    Sorry, I can't re-engage after stepping on the brake.

    Hitting "resume" does not work. Resetting does not work. Shutting off the cruise control then on will not re-engage. But after I pull over and teen car off then immediately back on everything is back to normal.
     
    #4 Db17, Jan 10, 2017
    Last edited: Jan 11, 2017
  5. CaliforniaPrius

    CaliforniaPrius Active Member

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    Did you notice if the LED indicator went on when you tried to engage cruise control? How about the central panel? Did the car say anything there?
     
    #5 CaliforniaPrius, Jan 10, 2017
  6. Optimus PRIME

    Optimus PRIME Active Member

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    What's the weather condition outside the car? If the windshield where your camera is looking out at is fogged up, it will disengage Cruise Control feature and Lane Departure Alert since the camera is needed for those features to work.
     
    #6 Optimus PRIME, Jan 10, 2017
  7. Db17

    Db17 Member

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    I think I've figured it out and I'll share because I don't see it called out in the OM.

    If you have the Cruise on and you shift into the B position. The Cruise system will not work until the car has been power cycled. It's also possible that I never shifted back into D.

    Seems to me though, if cruise control cannot operate in B then if you shift there the Cruise icon should disappear from the display

    Between the 2 owner manuals, there are over 1000 pages to read. I think that's a lot to ask for a consumer product.
     
    #7 Db17, Jan 11, 2017
    Last edited: Jan 11, 2017
  8. RJ Primw

    RJ Primw Member

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    But if you skip all the CYA obsessed warnings, the actual manuals are only about 20 pages.
     
    #8 RJ Primw, Jan 11, 2017
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  9. MattStevenson

    MattStevenson Member

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    You shouldn't be using B mode unless going down mountains and you keep fully charging your battery. It's just using the engine as a brake to help slow you.

    Posted via the PriusChat mobile app.
     
    #9 MattStevenson, Jan 30, 2017
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  10. Db17

    Db17 Member

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    I was going downhill when I used it.
     
    #10 Db17, Jan 30, 2017
  11. Lee Jay

    Lee Jay Senior Member

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    That would be a bug you should report to Toyota.

    That would be a "PICNIC" and thus not reportable to Toyota.

    "Dynamic radar cruise control with full-speed range can be set when
    ●The shift position is in D."
     
    #11 Lee Jay, Jan 30, 2017
  12. James Wells

    James Wells Junior Member

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    My experience too. Shift back to D, all is good.

    Posted via the PriusChat mobile app.
     
    #12 James Wells, Jan 30, 2017
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