Park Assist puts me more than 12 inches from the curb in parallel mode.

Discussion in 'Gen 4 Prius Technical Discussion' started by JMFB, Jun 15, 2016.

  1. JMFB

    JMFB New Member

    Joined:
    Mar 14, 2016
    22
    7
    0
    Location:
    KC
    Vehicle:
    2016 Prius
    Model:
    Four Touring
    I love park assist, but it puts my Prius dangerously far from the curb. Does anyone know if this is normal or if it can be adjusted?
     
    ETP and Ogo like this.
  2. Ogo

    Ogo Prius Owner since 2008

    Joined:
    Aug 23, 2008
    220
    44
    9
    Location:
    Ilirska Bistrica, Slovenia
    Vehicle:
    2016 Prius
    Model:
    N/A
    I have the same question. :)
     
    ETP likes this.
  3. wrprice

    wrprice Active Member

    Joined:
    Jul 11, 2005
    415
    308
    0
    Location:
    Houston, TX
    Vehicle:
    2016 Prius
    Model:
    Four Touring
    How far away from the curb are the vehicles you parked between? My understanding is that it doesn't "see" the curb; it lines up with the other cars.
     
    ETP and kithmo like this.
  4. Ogo

    Ogo Prius Owner since 2008

    Joined:
    Aug 23, 2008
    220
    44
    9
    Location:
    Ilirska Bistrica, Slovenia
    Vehicle:
    2016 Prius
    Model:
    N/A
    Hi!

    Other vehicles are usually less far from the curb than Prius is.
    It would be good to know methodology Prius uses to calculate the centerline to use for lineup with other cars.

    Ogo
     
    ETP likes this.
  5. Tideland Prius

    Tideland Prius Moderator of the North
    Staff Member

    Joined:
    Oct 2, 2004
    42,260
    13,793
    41
    Location:
    Canada
    Vehicle:
    2018 Prius Prime
    Model:
    Technology
    Also make sure you're within 1m/3ft of the parked car you pull up to parallel park behind it. If you're too far from the car, it will also park accordingly far.
     
    RCO and ETP like this.
  6. kithmo

    kithmo Couch Potato

    Joined:
    Apr 25, 2010
    2,404
    2,754
    47
    Location:
    South Yorkshire, UK
    Vehicle:
    2016 Prius
    I don't think the park assist will engage if you're too far away (>1m).
     
    ETP likes this.
  7. Kenny94945

    Kenny94945 Active Member

    Joined:
    Mar 24, 2016
    667
    344
    0
    Location:
    Sausalito
    Vehicle:
    2016 Prius v wagon
    Model:
    Four
    In for answer.

    12 inches...are you sure? Some exaggerate. haha

    Only two real comments:

    1) Does the car program start from the distance you are along the currently parked car (mentioned in post # 5) in front before reverse engages?

    That would make sense to me, using geometry, and that distance/ closeness to the other car could vary the amount the wheels end up from the curb.

    2) What's the legal distance to avoid a parking ticket?

    Is it 12 to 18 inches from the curb (USA Calif) .....I don't recall.

    (Yes, hoping the parking program it is adjustable!)
     
    RCO and ETP like this.
  8. Tideland Prius

    Tideland Prius Moderator of the North
    Staff Member

    Joined:
    Oct 2, 2004
    42,260
    13,793
    41
    Location:
    Canada
    Vehicle:
    2018 Prius Prime
    Model:
    Technology
    Ahh good to know.
     
    ETP likes this.
  9. narf

    narf Active Member

    Joined:
    Mar 15, 2005
    611
    44
    4
    Location:
    Colorado
    Vehicle:
    2016 Prius
    Model:
    Four Touring
    Park assist uses the outside edge of the cars in front and behind to gauge where to turn, so if you these cars are either very far from the curb or really wide, you will end up with a bit of a gap from the curb. But your car should end up parallel to the car in front

    SM-N910P ?
     
    RCO and ETP like this.
  10. pakitt

    pakitt Senior Member

    Joined:
    Aug 10, 2009
    1,961
    1,180
    0
    Location:
    Colorado
    Vehicle:
    2021 Prius Prime
    Model:
    Limited
    I have had the same issue and I posted my result here - front and back it was really tight (so much so it refused to help me to get out - I managed as I am quite used to this "narrowness" and the rear camera is an excellent help), but I was 5-10cm too far away from the curb IMO, also compared to the cars front/back. Another time I used it, the rear wheel was really far away (it parked almost "diagonally" wrt the curb...).

    I have to try again, in a quiet road, to see what it does and where I make a mistake. Maybe I start too close to the front car, or I don't start straight, or I don't notice that the front/rear car are parked farther away from the curb and they are not the same width.
    In any case I was never parked so bad to get a ticket.
    Reverse parking works really well instead :) although I have very few cases I need to use it.
     
    RCO, ETP and Tideland Prius like this.
  11. Tideland Prius

    Tideland Prius Moderator of the North
    Staff Member

    Joined:
    Oct 2, 2004
    42,260
    13,793
    41
    Location:
    Canada
    Vehicle:
    2018 Prius Prime
    Model:
    Technology
    Keep us posted! Always interested to learn about the technologies.
     
    ETP likes this.
  12. ETP

    ETP 2021 Prime(Limit),Highlander HYB Plat,B52-D,G,F,H

    Joined:
    Apr 12, 2009
    2,751
    1,148
    0
    Location:
    Auburdale FL
    Vehicle:
    2021 Prius Prime
    Model:
    Limited
    Sorry I gave up and pull into a slot. I see the utility of this for congested areas which I always avoid like the plague. My wife freaks out when testing this one item.
     
  13. AdamK

    AdamK Junior Member

    Joined:
    Apr 4, 2006
    7
    3
    0
    Location:
    Honolulu, HI
    Vehicle:
    2016 Prius
    Model:
    Four
    I just took my new Four out to try the parking assist on a quiet street . . . and I had the opposite problem. Too close! Tires scraped curb :eek:. Maybe related that i actually tried it out like I would teach a new driver - behind one car with nobody behind mine. Maybe it does need somebody behind to mimic.
    When i did try placing it between two cars (medium sized space), it got so close to the car behind, that i chickened out and put it into 'D' and centered it. But i didn't scrape the curb. I need to learn how the camera image corresponds to reality.

    --adam
     
    #13 AdamK, Sep 5, 2016
    Last edited: Sep 5, 2016
    RCO likes this.
  14. Tideland Prius

    Tideland Prius Moderator of the North
    Staff Member

    Joined:
    Oct 2, 2004
    42,260
    13,793
    41
    Location:
    Canada
    Vehicle:
    2018 Prius Prime
    Model:
    Technology
    For reference, here's my Gen 3 parked using IPA.

    image.jpeg

    Where the lighter concrete and the darker asphalt meet is about 30cm.

    How does that compare to the Gen 4's SIPA?
     
    kithmo and RCO like this.
  15. kithmo

    kithmo Couch Potato

    Joined:
    Apr 25, 2010
    2,404
    2,754
    47
    Location:
    South Yorkshire, UK
    Vehicle:
    2016 Prius
    I think the Gen 4 bases the position of where it ends up on the cars front and back, so if they are parked close to the curb (or Kerb as we Brits call it) then yours will end up close and vice versa. I haven't tried it on a space where the cars are parked on the Kerb yet.
     
    RCO likes this.
Loading...