Welcome to PriusChat

We'd love to have you join our community and participate in the conversation! Sign up for FREE today.

Sign Up

Hill Start Assist HSA- Can it be switched on for longer than 2 secs?

Discussion in 'Gen III 2010+ Prius Main Forum' started by garytail, Sep 15, 2010.

Social Buttons

  1. garytail

    garytail Junior Member

    Joined:
    Sep 5, 2010
    Messages:
    8
    Likes Received:
    0
    Location:
    Thousand Oaks, CA
    Your Vehicle Year:
    2010 Prius
    Model:
    V
    On my new 2010 V ATP, I was wondering if the Hill Start Assist could be switched on for longer than 2 seconds. It would be very helpful in traffic and at stoplights to be able to "lock it on" until one needs to move again.
  2. Paul58

    Paul58 Mileage Miser

    Joined:
    Jul 31, 2010
    Messages:
    1,126
    Likes Received:
    123
    Location:
    Atlanta
    Your Vehicle Year:
    2010 Prius
    Model:
    III
    I thought that once you set it it stayed until you pressed the gas... I've never tried it, pretty flat here, so don't know for sure. Used to have it in a Nissan Frontier, and once you set it it would hold until you pressed on the gas pedal...
  3. 32kcolors

    32kcolors Senior Member

    Joined:
    Jul 14, 2009
    Messages:
    5,831
    Likes Received:
    936
    Location:
    Redondo Beach, CA
    Your Vehicle Year:
    2010 Prius
    Model:
    V
    Traffic and stoplights? I don't think it's designed for that.
  4. energyandair

    energyandair Active Member

    Joined:
    Jun 9, 2009
    Messages:
    454
    Likes Received:
    106
    Location:
    Victoria BC Canada
    Your Vehicle Year:
    2010 Prius
    Model:
    N/A
    Sounds useful but what about liability if it does not stay on or if the driver just thinks its on?
  5. silverfog

    silverfog New Member

    Joined:
    Sep 26, 2009
    Messages:
    152
    Likes Received:
    23
    Location:
    Raleigh,nc
    Your Vehicle Year:
    2010 Prius
    Model:
    III


    Yes. Press hard on the brake to turn on HSA. Then keep your foot on the brake with just enough pressure to keep the HSA indicator light on. Your 2 seconds starts from the time you release your foot.
    1 person likes this.
  6. garytail

    garytail Junior Member

    Joined:
    Sep 5, 2010
    Messages:
    8
    Likes Received:
    0
    Location:
    Thousand Oaks, CA
    Your Vehicle Year:
    2010 Prius
    Model:
    V


    Thanks, I'll give that a try but was really hoping to be able to take my foot off completely.
  7. silentak1

    silentak1 Since 2005

    Joined:
    Jul 1, 2005
    Messages:
    895
    Likes Received:
    28
    Location:
    LA
    Your Vehicle Year:
    2010 Prius
    Model:
    III


    +1. This works, after HSA is engaged you don't need to keep applying as much pressure on the brake, just medium and it stays on.
  8. garytail

    garytail Junior Member

    Joined:
    Sep 5, 2010
    Messages:
    8
    Likes Received:
    0
    Location:
    Thousand Oaks, CA
    Your Vehicle Year:
    2010 Prius
    Model:
    V


    I'll have plenty of time to try this on the drive home tonight on PCH (Pacific Coast Highway):)
  9. Tideland Prius

    Tideland Prius Moderator of the North Staff Member

    Joined:
    Oct 2, 2004
    Messages:
    28,505
    Likes Received:
    1,522
    Location:
    Canada
    Your Vehicle Year:
    2010 Prius
    Model:
    N/A


    Yeah... that auto-hold feature is only available on luxury cars for now.. .it'll filter now eventually...
  10. HTMLSpinnr

    HTMLSpinnr Moderator Staff Member

    Joined:
    Dec 8, 2003
    Messages:
    5,257
    Likes Received:
    830
    Location:
    Surprise, AZ (Phoenix)
    Your Vehicle Year:
    2010 Prius
    Model:
    IV
    The point of the two seconds is to allow sufficient time for your foot to leave the brake pedal and find the accelerator to prevent rolling backward.

    It's not intended to substitute adequate brake pressure to keep you in place (i.e. a foot rest). If you don't want to move and want to keep your foot off the brake, place the vehicle in Park.

    Having brakes on though keeps the lights on for the driver behind so he knows when you're going to move and when you're not.
  11. 32kcolors

    32kcolors Senior Member

    Joined:
    Jul 14, 2009
    Messages:
    5,831
    Likes Received:
    936
    Location:
    Redondo Beach, CA
    Your Vehicle Year:
    2010 Prius
    Model:
    V


    PHC isn't hilly and I don't understand why you want to do all this extra work to activate Hill Start Assist every time you stop.
Similar Threads: Hill Start
Forum Title Date
Prius c Care, Maintenance and Troubleshooting Hill Start Assist Activating at every stop Nov 10, 2014
Prius v Main Forum Hill Start Assist down slope Jul 20, 2014
Toyota Prius Plug-in Starting Day Off on Top of Hill - Need Advice Apr 11, 2014
Videos Media: 2012 Prius v: Hill Start Assist Control Apr 30, 2013
Toyota Prius Plug-in Hill Start Assist Control (HAC) Sep 25, 2012