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2016 Prius Two Semi-self unintended acceleration

Discussion in 'Prius v Main Forum' started by mistyken, Sep 6, 2022.

  1. mistyken

    mistyken New Member

    Joined:
    Sep 6, 2022
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    Location:
    San Francisco
    Vehicle:
    2016 Prius
    Model:
    Two
    I experienced a weird incident but Im not sure if it could be classified as self unintended acceleration. Im also wondering if anyone on the forum had experienced similar incidents before.

    I live in a gated community and residents need to scan a keycard on a pole before getting in. there's a speed bump near the keycard scanner and the road leading to the speed bump is at a slight incline.

    At the time of the incident, I was gliding/rolling toward the speed bump while opening the window to get my keycard ready. As I approach the speed bump, my foot was applying light pressure on accelerator as some power is needed to climb the speed bump. I could feel my front wheel climbing over the speed bump and as it clear the top of the speed bump, and then I felt a very powerful acceleration kicking in as the car roll off the speed bump. I realized what's going on and immediately slam on the brake and arrested the surging vehicle, no damage was done.

    my question is, would this be a glitch in the hill assist function? I can't 100% rule out the possibility of human error was my foot was on the gas pedal, but I was pretty certain I didn't slam on the gas as well. Has anyone experienced something similar?
     
    #1 mistyken, Sep 6, 2022
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    this is the traction control kicking in, a very common event with prius and other cars at low speed and uneven pavement. nothing to worry about, other than paying attention and applying the brakes as necessary
     
    #2 bisco, Sep 6, 2022
  3. ChapmanF

    ChapmanF Senior Member

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    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    This might be the first time I've heard of that happening when nobody's foot was on the brake, though.
     
    #3 ChapmanF, Sep 6, 2022
    CR94 likes this.
  4. CR94

    CR94 Senior Member

    Joined:
    Dec 2, 2014
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    Location:
    Northwestern S.C.
    Vehicle:
    2011 Prius
    Model:
    Two
    As best I can tell, my Prius is utterly incapable of "very powerful acceleration," short of getting rear-ended. Rolling down off the speed bump, combined with foot-on-accelerator would cause moderate acceleration.
     
    #4 CR94, Sep 7, 2022
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