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HELP! 2010 Prius Dynamic Radar Cruise Control problem?

Discussion in 'Gen 3 Prius Main Forum' started by imagehh, Oct 10, 2009.

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  1. duffasaurus

    duffasaurus Senior Member

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    I have a 2010 V with all the same features as you! After two years and extensive use of DRCC & LKA, I have never experienced a failure as you have discribed. However, since these features are controlled by various computers in the vehicle, just like your PC or Laptop, etc. ; there are gliches that can occur and this appears to be one of them. Of course, if your dealer cannot duplicate the problem or find a failure code, they will not just replace the appropriate computer! :( I would recommend reading the owner's manual to see if anything you are doing that may be causing this, i.e. trying to engage the DRCC at too low a speed, etc. Good Luck! :)
     
    #21 duffasaurus, Feb 12, 2012
  2. MrBillTulsa

    MrBillTulsa Member

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    This is just a reminder, and yes - in this case, I know it sounds too simple - but there are cases of CC failure related to the adjustment of the break switch down on the break pedal arm. When the break pedal is fully released, make sure that the switch is "unmade".

    Bill
     
    #22 MrBillTulsa, Feb 12, 2012
  3. macman408

    macman408 Electron Guidance Counselor

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    Also, keep in mind that once you switch to the non-DRCC, you have to turn the car off and back on to get the radar again. Or so the manual says, anyway. And it might just be that you accidentally hit the mode lever?
     
    #23 macman408, Feb 13, 2012
  4. cproaudio

    cproaudio Speedlock Overrider

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    You don't need to turn the car off and on to reengage the radar. Just turn the cruise off and on will reengage the radar.
     
    #24 cproaudio, Feb 13, 2012
  5. tumbleweed

    tumbleweed Senior Member

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    I have the impression that the radar is on all the time at speeds over about 30 MPH. If it were not the PCS wouldn't work unless the DRCC was on.
     
    #25 tumbleweed, Feb 13, 2012
  6. Tideland Prius

    Tideland Prius Moderator of the North
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    I thought it was lower than that? PCS brake (priming the brake pads) and PCS braking have different limits but I thought one was as low as 15km/h?
     
    #26 Tideland Prius, Feb 13, 2012
  7. tumbleweed

    tumbleweed Senior Member

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    That could be, I was thinking of the minimum DRCC speed.
     
    #27 tumbleweed, Feb 13, 2012
  8. Tideland Prius

    Tideland Prius Moderator of the North
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    Ohh. Yeah the minimum DRCC speed is around 40km/h (25mph) I think. (although the manual says 30mph).

    I checked the manual. PCS Braking is 15km/h (9mph). Here are the other limits.

    PCS seatbelts is active above 3mph
    PCS Brake Assist is active above 18mph
    and PCS Braking is active above 9mph
     
    #28 Tideland Prius, Feb 13, 2012
  9. dustoff003

    dustoff003 Blizzard Brigade #003

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    My DRCC will engage at 28 MPH, and it disengages at 23 MPH, while decelerating.


    Posted from my iPhone via the Tapatalk app.
     
    #29 dustoff003, Feb 15, 2012
  10. Econ

    Econ Member

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    remember guys.... Do not use cc in the rain!
    That is a no no. Wet conditions etc... Like snow rain and etc.
    The computer knows when the wipers are on the the cc disengages.... Makes sense?
     
    #30 Econ, Feb 16, 2012
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