Do you use parking brake?

Discussion in 'Prime Main Forum (2017-Current)' started by Michael Nielsen, Feb 11, 2017.

  1. Michael Nielsen

    Joined:
    Jan 19, 2017
    67
    87
    0
    Location:
    Dover, DE
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Premium
    I notice that the manual recommends using the parking brake in addition to putting the Prime in Park when turning the car off. My question is, does the parking brake really need to be applied when the Prime is on flat ground? I ask because my Prime seems to roll a bit when I put in Park and release the foot brake. My Honda CR-V doesn't do that.
     
  2. JimboPalmer

    JimboPalmer Tsar of all the Rushers

    Joined:
    Apr 14, 2009
    11,994
    6,254
    0
    Location:
    Greenwood MS USA
    Vehicle:
    2012 Prius v wagon
    Model:
    Three
    (I do not own a gen 4, but I have had a Gen 2 and a v)

    The Pawl that is inserted into the gears when in Park has several degrees of slop. It is not a instant block, my SWAG would be 5 degrees of free range. (maybe 3 inches of for and aft movement, just once per Park)
    [​IMG]

    I live in an extremely flat part of the country, I can travel 154 miles and only gain 90 feet, so I rarely use the parking brake unless I am away from home.

    Looking at maps of Dover, I would avoid rolling into Delaware Bay.
     
    Montgomery and Insirt like this.
  3. Optimus PRIME

    Optimus PRIME Active Member

    Joined:
    Dec 16, 2016
    179
    140
    0
    Location:
    SF Bay Area
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Advanced
    Someone suggested to me that using the Parking Brake is a good idea in addition to switching to Park to reduce the wear on the Park gear. Not sure how true that is though.
     
  4. Samprocat

    Samprocat Active Member

    Joined:
    Jan 16, 2017
    491
    293
    0
    Location:
    Lincoln, NE
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Plus
    Yes....it's a lot cheaper replace parking brake than this part inside of transmission....

    Posted via the PriusChat mobile app.
     
    Optimus PRIME likes this.
  5. Optimus PRIME

    Optimus PRIME Active Member

    Joined:
    Dec 16, 2016
    179
    140
    0
    Location:
    SF Bay Area
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Advanced
  6. markyr17

    markyr17 Junior Member

    Joined:
    Jul 18, 2013
    6
    2
    0
    Vehicle:
    2012 Aqua
    Model:
    One
    Prius do not have transmissions.
     
    Rebound and priuscatprimeguy like this.
  7. JimboPalmer

    JimboPalmer Tsar of all the Rushers

    Joined:
    Apr 14, 2009
    11,994
    6,254
    0
    Location:
    Greenwood MS USA
    Vehicle:
    2012 Prius v wagon
    Model:
    Three
    Mine do, in fact, it also contains a differential, so it is a transaxle as well.

    "In British English, the term transmission refers to the whole drivetrain, including clutch, gearbox, prop shaft (for rear-wheel drive), differential, and final drive shafts. In American English, however, the term refers more specifically to the gearbox alone, and detailed usage differs" - Transmission (mechanics) - Wikipedia

    So in British, the half shafts out to the wheels are part of the transmission, while in American, it is just the lump to the right of the engine. "In American English, a gearbox can be any housing containing a gear train, even just one pair of bevel gears; a transmission is a type of gearbox that is used to dynamically change the speed-torque ratio such as in a vehicle; and automatic transmissions are usually called by that name only, although manual transmissions are often called gearboxes."

    "In the automotive field, a transaxle is a major mechanical component that combines the functionality of the transmission, the differential, and associated components of the driven axle into one integrated assembly." - Transaxle - Wikipedia
     
    #7 JimboPalmer, Feb 12, 2017
    Last edited: Feb 12, 2017
    Andyprius1 and Data Daedalus like this.
  8. bwilson4web

    bwilson4web i3 and Prime

    Joined:
    Nov 25, 2005
    23,011
    12,882
    0
    Location:
    Huntsville AL with 2014 BMW i3-REx
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Plus
    I also find it useful when arriving home and wanting to take shots of the operational screens. Many are inaccessible when in "P". So I leave the car in "D" and set the parking brake. Get the data I am interested and then put the car in "P".

    Bob Wilson
     
    Andyprius1 and thatoneraccoon like this.
  9. RRxing

    RRxing Senior Member

    Joined:
    Jul 7, 2009
    2,075
    1,343
    0
    Location:
    Long Island, NY
    Vehicle:
    2017 Prius
    Model:
    Three Touring
    The only time I may not use the parking brake is in humid/wet freezing weather, just in case the mechanism freezes up. I use it all other times, for the reasons cited above.
     
    DickPhillips likes this.
  10. mr88cet

    mr88cet Senior Member

    Joined:
    Sep 9, 2008
    1,966
    1,146
    0
    Location:
    Austin, TX
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Advanced
    I have always used the parking brake when I'm parked.

    Eons ago, when I was learning to drive (mostly on a manual transmission), I habitually parked it in neutral with parking brake on. Then again, that was in Houston, which is flat flat flat...
     
    #10 mr88cet, Feb 12, 2017
    Last edited: Feb 12, 2017
    ruby likes this.
  11. PriusNeckBeard

    PriusNeckBeard Active Member

    Joined:
    Sep 14, 2016
    357
    207
    0
    Location:
    Cincinnati
    Vehicle:
    2013 Prius
    Model:
    One
    It's also good when you accidentally leave the car running and get out....

    I've probably done this half a dozen times since buying the car in September.

    From previous non-hybrid driving, I've carried over and now reinforced automatic habitual sequencing of pressing the parking brake when I stop the car for good, and it's saved me.

    I think it's this: sometimes when I'm talking with my son before getting out of the car, I win't turn the car off because we need the hvac. We're in a hurry, plans change, we stop at the house to pick something up, that sort of thing. Then we do exit, and oops, I've left the car running, occasionally not even in park!! So, habitual use of the parking brake has been great, and critical.

    Now that I've got that down, I think I need to start turning off the car..
     
  12. liskipper

    liskipper Member

    Joined:
    Aug 26, 2009
    371
    76
    9
    Location:
    Long Island, NY
    Vehicle:
    2013 Prius
    Model:
    Three
    When I drove a car with stick I always left in reverse and rarely used the parking brake unless on a hill.

    Posted via the PriusChat mobile app.
     
  13. bwilson4web

    bwilson4web i3 and Prime

    Joined:
    Nov 25, 2005
    23,011
    12,882
    0
    Location:
    Huntsville AL with 2014 BMW i3-REx
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Plus
    One thing I've come to like with our other car is opening the driver door automatically puts it in park and turns off the car. The only way to exit the car and leave it READY is to latch the seat-belt behind my back. But I've not really found a good reason for doing that.

    A big advantage of our plug-in hybrids is they have all but eliminated the startup penalty.

    Bob Wilson
     
  14. Lee Jay

    Lee Jay Senior Member

    Joined:
    Jun 25, 2009
    4,920
    3,547
    0
    Location:
    Westminster, Colorado
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Advanced
    I'm not sure the parking brake has ever been set on my 2004.

    Setting the parking brake around here can result in it getting frozen in the on position so I never, ever set it on a car with an automatic. On a manual I will on a steep hill because there's no mechanical lock, just engine compression.

    I take that back. I set it on my 2004 when I'm rotating the tires or when I have it on a jack for oil changes.
     
    Andyprius1 likes this.
  15. Mendel Leisk

    Mendel Leisk 'Orrible Oracle

    Joined:
    Oct 17, 2010
    37,762
    26,536
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Yeah, any car we've had, always used the park brake. I want the car stopped, not sloshing around within the limits of the transmission's locking mechanism. I try to set it a bit lighter, in the garage, on the level.
     
  16. Lee Jay

    Lee Jay Senior Member

    Joined:
    Jun 25, 2009
    4,920
    3,547
    0
    Location:
    Westminster, Colorado
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Advanced
    It doesn't need to be applied on any ground, unless you think it's slippery enough that you need the traction of all four tires to prevent it from sliding.

    I don't use it even on my driveway, which is a 10% grade.
     
  17. arctichaze

    arctichaze New Member

    Joined:
    Dec 17, 2016
    14
    1
    0
    Location:
    SoCal
    Vehicle:
    2016 Prius
    Model:
    Four Touring
    Only when I'm parked on an incline or decline. Otherwise no.
     
  18. cghelton

    cghelton Junior Member

    Joined:
    Dec 20, 2016
    5
    2
    0
    Location:
    Hamilton
    Vehicle:
    2012 Prius
    Model:
    Four
    I use mine all the time.


    iPhone ?
     
  19. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    85,530
    37,709
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    i only use mine when the car feels like it's rolling fast when i let off the brake in neutral. it's more of a feel thing.
    and in winter, i'm even more conservative.
     
  20. Since2002

    Since2002 Senior Lurker

    Joined:
    Nov 12, 2011
    936
    1,091
    0
    Location:
    Duluth, GA
    Vehicle:
    2006 Prius
    Model:
    N/A
    I try and avoid leaving the engine running if I get out of the car. But if I do I always set the parking brake, even though it's already in park, just for that extra insurance. And I also set it if parked on a hill. But in a level parking lot or in my garage? Never. Except as Lee Jay said when rotating my tires or changing oil.

    As for wearing out my transaxle by putting it in park without setting the parking brake, well I guess I am doubly guilty, because if I am at a stoplight for more than a minute I put it in park so that I can take my foot off the brake. Otherwise you have to hold firm pressure on the brake pedal to keep SOC from slowly leaking out, something I discovered with my ScanGauge. That's on my Gen 2 anyway not sure about later models.
     
    Data Daedalus likes this.
Loading...