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3rd Gen Traction Control Modes Explained

Discussion in '3rd Gen. Tacomas (2016+)' started by Doggman, Jan 25, 2018.

  1. Apr 5, 2020 at 6:37 AM
    #341
    Ncpi007

    Ncpi007 Well-Known Member

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    Thank you for this summary, I read most of every thread and I was specifically looking for ——- When in MTS, should I have the auto locker on?

    You answered it, thank you!!!!

    Last weekend, I took my 18 ORD out in the mud for the first time, of course, I could not figure out any of the MTS or CRAWL modes. So I ran 4HI the whole time and got stuck everywhere. I was with about 20 rigs and everyone had a different idea/opinion on who the 3rd gen auto stuff works. One guy was like you should be running 4LO thru everything. I was so confused..........
     
  2. Apr 5, 2020 at 8:22 AM
    #342
    David K

    David K Well-Known Member

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    I am not sure what you are saying... sorry. Why couldn't you figure out the modes?
    MTS and CRAWL are LOW RANGE systems, so if you were only in H4, they do not come on.
    In H4, the limited slip system (TRAC or TRAC OFF) are your selection choices, in addition to turning them off by going to VSC OFF MODE... which is open diffs with the chance of just one tire in front and one in the rear spinning.

    LOW RANGE (L4) is when you need to climb up, down, or through a difficult surface... S-L-O-W-L-Y. IF you get stuck, go into L4 and use CRAWL to automatically extract you. Use MTS always in low range but only use the rear locker if you struggle getting up or through a bad area.

    HIGH RANGE (H4) is normal speed driving over poor surfaces where tires may spin (sand, snow, ice, mud, wet pavement).
     
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  3. Apr 6, 2020 at 5:50 AM
    #343
    Ncpi007

    Ncpi007 Well-Known Member

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    Thank you for the comments, I could not figure it out because 1. I was stuck. 2. To many people telling me what to do.

    And 3. Don’t Laugh

    I did not know to place in neutral to change mode.

    Live and learn.
     
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  4. Apr 6, 2020 at 6:12 AM
    #344
    Pablo8

    Pablo8 Juan Fresh Taco

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    Don't sweat it. Most of us have been there. Shortly after I installed my 2WD LOW only switch I completely forgot the order of things. Thought I messed my truck up!
     
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  5. Apr 6, 2020 at 7:23 AM
    #345
    RobP62

    RobP62 Bla Bla Bla

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    It's hard under a stressful situation to have to listen to so many armchair experts. The lessons we learn from our mistakes are usually the easiest to remember. :thumbsup:
     
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  6. Apr 6, 2020 at 9:34 AM
    #346
    David K

    David K Well-Known Member

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    Good for you for not giving up!
    Go someplace (once the virus is over) and just play with your truck to test it all out in every mode... relaxed, no pressure, no eyes watching. The only thing you need to have (IMO) is a tire pump, like an MV-50. This is because lowering the pressure in your tires is the single greatest traction aid you can do. 15 psi is a typical point to lower to. Now, you never need to fear getting stuck in sand or in steep climbs. Mud is a different matter so I will say to avoid that until you are comfortable four wheeling.
    For me, I experimented in three locations: hills with deep rutted roads (San Marcos), the desert sand dunes and arroyos (Ocotillo Wells), and Baja California's deep sand beaches (south of San Felipe). See my links in my signature...
     
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  7. Apr 6, 2020 at 10:13 AM
    #347
    BigWhiteTRD

    BigWhiteTRD Official thread killer (only crickets remain)

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    Yep
    Just think about how I felt while reverse engineering 2lo on 3rd gen... on at least two occasions I was basically positive I had fried the ECU but it all came out ok.

    (I discovered when I messed up early attempts at controlling the actuators, that you can manually drive the actuators into invalid positions and the ECU just shuts down if you do, but you can get them back into legal positions with a few AA batteries)
     
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  8. Apr 10, 2020 at 2:57 PM
    #348
    Ncpi007

    Ncpi007 Well-Known Member

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    Thanks David, I could not take cabin fever, I went on state land and practiced. I found that you have to be in neutral, choose mode —- it will tell you to go into 4L mode, then is words, lol, I crawl back and forth........

    3CEDDAFD-4801-499E-9857-41B38BC4606D.jpg
     
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  9. Apr 10, 2020 at 9:52 PM
    #349
    David K

    David K Well-Known Member

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    You must be in neutral to go into and out of L4. You should be able to change the MTS settings, etc. at will. All this will be in your owner's manual.
    You should check out all the H4 choices, too. I am speaking of Track and Track Off differences.
     
  10. Apr 26, 2020 at 8:43 PM
    #350
    rubiconjp

    rubiconjp Well-Known Member

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    I'm a bit confused by all the dashboard lights upon going into 4LO and then A-TRAC. I have a DCSB TRD off-road 4x4 6MT.

    4LO:
    IMG_20200425_163336.jpg

    A-TRAC:
    IMG_20200425_163431.jpg

    4LO disables traction control and VSC? A-TRAC only disables VSC? Are these correct? Thanks.
     
  11. Apr 26, 2020 at 9:21 PM
    #351
    Doggman

    Doggman [OP] Well-Known Member

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    The TRAC OFF light turns off when you turn A-TRAC on because A-TRAC is traction control.

    Answer to the first question is yes, by default 4-LO turns off both but you can turn traction control back on in 4LO by pressing A-TRAC.

    To say A-TRAC disables VSC is wrong. VSC is off because you are in 4LO in your pictures.
     
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  12. Apr 26, 2020 at 9:26 PM
    #352
    BigWhiteTRD

    BigWhiteTRD Official thread killer (only crickets remain)

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    Looks right for a manual Pro/Or
    In general, it's in 4wd, in 4lo, with collision avoidance deactivated.

    In 4lo for Pro/Or, truck defaults to no VSC, no traction control. This gives the 'Trac off' and 'squiggly off'.

    Atrac provides traction control, so the 'trac off' light is removed....
     
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  13. Apr 27, 2020 at 9:11 AM
    #353
    David K

    David K Well-Known Member

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    Sounds about right! ;)
     
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  14. Apr 29, 2020 at 5:12 PM
    #354
    Buschman

    Buschman Well-Known Member

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    Question from a 1st gen guy that could be interested in a 3rd. I looked at the chart on page on and saw the few things not available on a TRDOR6MT vs TRDOR auto. If while stopped in 2wd I hold the VSC button down, that basically makes it like my 1998? Dose the computer take back over when you hit 35mph? I test drove a 6MT TRDOR yesterday, I pressed the VSC while stopped, then got on the freeway up to 80mph and the lights said everything was disabled still. I wasn't able to pull onto some dirt and test it out. If VSC/Trac control was disable above 35mph would the same truck in an auto do the same thing. Like I said 1st Gen guy looking at a new truck. I like doing the thinking even if the computer is badass. If all the nanny systems come back on over 35mph that would drive me nuts.
     
  15. Apr 29, 2020 at 9:26 PM
    #355
    ShimStack

    ShimStack Well-Known Member

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    Long press on the VSC off button disables traction control and stability control as much as the truck will allow. Anti-lock brakes are still active. Yes, this is basically driving on mechanical components with no wheel braking or engine cut intervention from the skid control ECU. It's supposed to remain this way at all speeds, but there's no guarantee Toyota hasn't kept something active under certain conditions. These systems shouldn't intervene during typical driving unless you begin to really over/understeer or break traction. This is the same setup on manuals and autos. Honestly, you should embrace these systems, especially for daily driving.
     
  16. Apr 30, 2020 at 6:27 AM
    #356
    David K

    David K Well-Known Member

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    The VSC will come back on IF you drive in a dangerous manner. ie, the truck (and Toyota lawyers) won't let you kill yourself if you get stupid. So, no, they do not come back on at 35 mph unless you are doing something dumb.
     
  17. Apr 30, 2020 at 6:45 AM
    #357
    Buschman

    Buschman Well-Known Member

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    Ok thank you for the replies. So it is off for the most part, they just don't make things like they use too lol. My wife had a 2016 4runner and I thought it kicked back on at 35mph, but I only messed around off road once or twice with it since I had my 1st gen to play with. I'm not so much worried on road about it as off. If every time I exceeded 35mph blasting across the desert or on a logging road it turned back on that would really get to me. Glad to know that function is the same auto vs 6MT.
     
  18. Apr 30, 2020 at 1:52 PM
    #358
    David K

    David K Well-Known Member

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    I think you might be thinking of the VSC being off when you are in AUTO LSD mode? It comes on at 30 mph.
    AUTO LSD is the 2WD traction mode that turns off engine regulation. It is also called TRAC OFF in 4WD-High. You push the button quickly, moving or stopped for that.

    VSC OFF is no traction control and no stability control. You get that by stopping and then hold in the button for a few seconds.

    I do not like VSC OFF at all. The beauty of the traction assistance is it improves off road driving, giving the benefit of limited slip differentials. My 2010 truck goes off road far better than either my 2001 or 2005 4x4 Tacomas because of TRAC or TRAC OFF in H4 and A-TRAC in L4.
     
  19. Apr 30, 2020 at 3:46 PM
    #359
    Buschman

    Buschman Well-Known Member

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    I have no doubt that Toyota put together a system that works great on these very popular trucks that tons of people actually use off road. That being said I like options and feel like there should be a button that turns the truck into 1980s traction control. I don't want Toyota, the government or anybody else telling me what is best for me. Even if I'm stuck on the trail as some kid drives around me with his computer controlled truck lol!
     
  20. May 3, 2020 at 7:58 AM
    #360
    J65

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