Why turn ESC off?

Discussion in 'General Motoring' started by stevek, Apr 9, 2007.

  1. stevek

    stevek Guest

    I just got my 2007 Santa Fe, Limited, Ultimate Package, AWD yesterday
    and am, so far, very satisfied.

    Question: I noticed that Elecronic Stability Control (ESC) and All
    Wheel Drive can be manually turned off or on. Why would one want to
    turn ESC off? And, if AWD is off does than mean that if the front
    wheels start to slip traction will not go to rear automatically?

    Thanks
     
    stevek, Apr 9, 2007
    #1
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  2. Probably for the same reason that one would turn off ABS; these wiz-bang
    electronic systems are typically the least usefull when you need them
    most, such as in really low traction situations (ice, for one).
    Yup, you'd be just dragging around dead weight that eats into your gas
    mileage.
     
    Brian Nystrom, Apr 9, 2007
    #2
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  3. If you have a flat tire and put on a small spare, it could be sending false
    signals, or so I'm told.

    ESC works. I had a situation last week where, at 65 mph, I had to cut to
    the left lane suddenly and the pavement was wet. I don't know that I'd have
    fared well without it as I pulled the wheel sharp left, then right. I
    thought I'd be skidding or going off the side, but the ESC kicked in and it
    tracked right through.
     
    Edwin Pawlowski, Apr 9, 2007
    #3
  4. stevek

    Matt Whiting Guest

    I'm not sure why you would turn off AWD unless there is a fuel mileage
    gain to be had, but most AWD systems, unlike the older 4WD systems, tend
    to have less impact on mileage whether they are on or off. Probably
    their biggest impact is weight and you can't turn that off.

    As for ESC, traction control, etc., there are cases where this is a
    handicap. Deep mud and snow come to mind. In those conditions you want
    to spin to clean the tread on your tires so that you can keep biting
    into the snow or mud. Limiting spinning in those conditions, mud
    especially, will get you stuck in a heart beat.

    The same holds for ABS in deep snow, sand, etc. It would be better if
    you could turn it off and lock the wheels, but ABS doesn't give you that
    option.

    Matt
     
    Matt Whiting, Apr 9, 2007
    #4
  5. stevek

    Matt Whiting Guest

    Yes, I've heard that also. Have not yet (knock on wood) had to find out.

    Matt
     
    Matt Whiting, Apr 9, 2007
    #5
  6. stevek

    Darby OGill Guest

    If you had a childish moment, and you wanted to dust off someone at the
    lights, you might turn esc off . wheel spin isn't good I suppose, but I bet
    funny cars don't have esc.

    Its a good question though. Does esc only apply braking to a slipping wheel
    ala tyraction control? I've had it feel like it actvated only once-around a
    wet exit ramp while on the gas......never has kicked in while off the
    throttle.
     
    Darby OGill, Apr 9, 2007
    #6
  7. stevek

    Matt Whiting Guest

    Actually, wheel spin is a bad deal for fast acceleration. Funny cars
    don't have ESC last I knew, but they have something that performs a
    similar function - a slipper clutch. If a Funny car loses traction and
    smokes the tire, they lose. When two are side-by-side and fairly
    equally matched and then one spins the tires, the difference in
    acceleration is dramatic as the car with the smoking tires drops back
    instantly and dramatically.
    It also cuts the throttle. I took off on a road with a thin layer of
    ice one morning and the car started bucking like crazy. I thought
    something was wrong and let off the throttle and it stopped. I got back
    on the throttle again and it started bucking again. Guessing at that
    point that it was the ESC, I hit the brakes and the ABS kicked in
    instantly. I was on black ice.

    Matt
     
    Matt Whiting, Apr 9, 2007
    #7
  8. stevek

    Eric G. Guest

    Yes, I can vouch for the same response on black ice. I had at least 10
    mornings this Winter with the nasty stuff. Although we barely got any snow
    in my part of NJ this year, the black ice was the worst I can recall.

    Although in my car I certainly wouldn't call it bucking. I have a feeling
    that is because I have an AT versus your MT.

    Personally, though, I really like the ESC and ABS in the bad weather. I
    could use the throttle and brakes almost as I would in "normal" weather,
    albeit at a slower (safe) speed.

    I loathe it in the dry weather though. It takes away some of the fun of
    driving as far as I am concerned. It is a good idea for those with worse
    reaction time that me though.

    Eric
     
    Eric G., Apr 9, 2007
    #8
  9. stevek

    Darby OGill Guest

    Matt, I follow what you say ., and now that you mentioned it, I guess I did
    notice throttle being affected. So I concur with one caveat....having had a
    such childish moments in my life, it seems from those experiences I can get
    a better hole shot using my foot/brain combination rather than the traction
    control. The onboard system seems to "give up" at wheel spin and not let you
    back into the fray quick enough! That being said, I almost never would have
    esc turned off, and don't advocate street racing.
     
    Darby OGill, Apr 9, 2007
    #9
  10. stevek

    hyundaitech Guest

    ESC is actually three separate systems.

    1. ABS. This activates only during braking and modulates the fluid
    pressure to wheels that are starting to lock up.

    2. Traction control. This will modulate the ABS, reduce power through
    the throttle or by cutting fuel, and in some cases upshift the
    transmission.

    3. Stability control. This will momentarily activate the brake (one
    pulse) on one wheel to cause the vehicle to rotate more in the desired
    direction.
     
    hyundaitech, Apr 10, 2007
    #10
  11. stevek

    Wayne Moses Guest

    Reply to message from "hyundaitech" <> (Mon, 09 Apr
    2007 19:20:28) about "Re: Why turn ESC off?":

    h> ESC is actually three separate systems.

    Thanks for taking the time to straighten out this issue as it seems to have
    skidded off at a tangent. ;-)

    Best Regards
    Wayne Moses <> Mon, 09 Apr 2007 19:50:10 -0500

    === Posted with Qusnetsoft NewsReader 3.3
     
    Wayne Moses, Apr 10, 2007
    #11
  12. stevek

    Fantine Guest

    Can ESC be put into a car after the fact (like in my 07 Elantra, which has
    ABS)?
     
    Fantine, Apr 10, 2007
    #12
  13. stevek

    Mike Marlow Guest

     
    Mike Marlow, Apr 10, 2007
    #13
  14. stevek

    Matt Whiting Guest

    Are you saying that turning off ESC also disables the ABS? I find that
    hard to believe.

    Matt
     
    Matt Whiting, Apr 10, 2007
    #14
  15. stevek

    mbleisch Guest

    Mike Marlow is somewhat incorrect - you CAN add ESC to a car already
    with ABS for an additional $110, I am sure this is manufacturer
    dependent (e.g. check with your dealer). This past Sunday evening
    (4/8/07), 60 Minutes had a segment on ESC and the difference with and
    without this feature. Groups (which groups I do not remember) are
    pushing to have ALL vehicles to have this feature by 2012. 60 Minutes
    did not go into whether or not that $110 was parts only, or parts and
    labor. Fantine - I would do some research. I am somewhat suprised
    that your 07 Elantra doesn't have ESC equipped, I thought it was
    standard for ALL Hyundai models these days.
     
    mbleisch, Apr 10, 2007
    #15
  16. Please let us know the JC Whitney catalog or Pep Boys number for that
    plug-in part.
     
    Edwin Pawlowski, Apr 10, 2007
    #16
  17. stevek

    Eric G. Guest

    ABS is not disabled with the ESC off, however it will only work for
    braking. The ESC portion of the ABS system is deactivated.

    Eric
     
    Eric G., Apr 10, 2007
    #17
  18. stevek

    hyundaitech Guest

    It'll disable the stability and traction control.
     
    hyundaitech, Apr 10, 2007
    #18
  19. stevek

    hyundaitech Guest

    I was pretty sure ESC was standard on the 2007 Elantra. Now I'll need to
    check.
     
    hyundaitech, Apr 10, 2007
    #19
  20. It is not shown on the Hyundai web page. Just ABS.
     
    Edwin Pawlowski, Apr 10, 2007
    #20
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