Crawl control discussion

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CC tries to maintain a certain speed similar to cruise control. You can accelerate if you want but it'll go back to the set speed once you stop accelerating. MTS varies the aggressiveness of the traction control depending on the setting but you control throttle and brakes. You enter MTS as soon as you go into 4low.
 
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OK, so despite all of the "theoretical" discussion here I think it might be the best thread to ask this question. I've picked up bits from this thread, owner's manual, other threads but still am not clear on a few things. Remember, coming from FJ-62 world with simple 4WD and lockers :) So...

What is the difference between Crawl Control and MTS and how is MTS engaged?

CC - you hit the button and dial in the speed. You steer. It controls throttle. Does it also control brake?

MTS - when the heck does MTS come into play and how is it different from CC?

I tried playing with these in the snow yesterday and came away even more confused.

If there is a good explanation lurking around on this that I haven't found please point me to it. And no, not the owner's manual. I've spent a ridiculous amount of time with that and the only thing that I learned is another way to get a headache.

To answer your questions:

CC - Yes it controls throttle and brake
MTS - For more active driving at higher speeds than CC. It will allow some degree of wheelspin depending on terrain selection.

This article might give you more insight. It's focus'd onthe GX, but has most of the similarities

 
Think of it this way: you wouldn’t want any wheel spin on slick rock in Moab, but you WILL have wheel spin in sand. If traction control were set up to totally prevent wheel spin, cutting throttle until there is none, you wouldn’t get anywhere on a beach. So MTS gives you options.

CC is going to default to the slick rock dont-allow-slip scenario, but as you know will give even more control by handling the throttle and brake to control vehicle speed overall.
 
OK, great this all is a help on why one would use MT vs. CC. More snow overnight so I got to play with this more this morning. How to get into MTS was my last question, but from what I can tell in H4 it is always in sand/mud mode. In 4L you can pick the mode. But MTS is always "on" in either 4H or 4L. Thus my inability in finding a way to turn it "on".

Is this correct? MTS is always engaged in some mode for the LC200? It is a little confusing because the video above for the Pradeo shows a button for MTS and an "off" setting in the display (or at least I think it is an off for the MTS). Or maybe that button is just changing the MTS settings and that "off" refers to something else?
 
If I learned anything from this discussion it is that Crawl Control also works in reverse! (above TLC 150 CC video @4:42)

crawlReverse.JPG
 
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Don't forget nwfl4runner's "2013+ 5 Speed Crawl-Control (CC), Multi-Terrain Select (MTS), and Offroad Turn-Assist (OTA)" retrofit for 2008-2011 models

 
I can't speak for the 200 series.. it has to be turned on/off on the 150 series


I'm having trouble remembering if my base GX460 had MTS. I think that it didn't which might explain why the 150 makes you turn it on?

This morning I was paying more attention, and when I shifted into 4L the MTS mode came up on the bottom of the center display (dash display). The CC/MTS dial changed modes. I didn't have to turn MTS on or off. I than turned on CC to get more familiar with it. I wasn't slick enough to actually need it

I also wonder if the lack of MTS in my 460 was the reason it didn't do as well in the snow as my FJ-62 or 200 (at least it felt that way to me). I frequently ran the CDL in snow. That helped a lot. This was surpising as I'm a big fan of Torsen, having previously had 2 Audi A4s that were tanks in the snow (at least, for a car). Having MTS on in Sand/Mud by default in H4, effectively more active control than just the center Torsen, could explain the difference in performance.
 
OK, great this all is a help on why one would use MT vs. CC. More snow overnight so I got to play with this more this morning. How to get into MTS was my last question, but from what I can tell in H4 it is always in sand/mud mode. In 4L you can pick the mode. But MTS is always "on" in either 4H or 4L. Thus my inability in finding a way to turn it "on".

Is this correct? MTS is always engaged in some mode for the LC200? It is a little confusing because the video above for the Pradeo shows a button for MTS and an "off" setting in the display (or at least I think it is an off for the MTS). Or maybe that button is just changing the MTS settings and that "off" refers to something else?

It is confusing. Each of the traction functions is a different strategy. Some overlaid on top of each other. Some working at different scenarios and speeds. And some needing to be enabled (or disabled).

In normal driving with transfer case in high, the primary traction functions in play are VSC (Vehicle Stability Control) and Active TRAC (ATRAC). VSC assists in managing the attitude (directional) control of the car to match steering inputs, by utilizing individual brake inputs. ATRAC works at lower speeds to manage wheel spin and direct power to tires that have traction, using a combination of brakes and reducing power from the engine.

MTS and CRAWL are for lower speeds still, and really technical driving, primarily supporting when the transfer case is in low.
 
I like it! Just needed to find time with enough snow to experiment locally to figure some of this out (I always seem to be in a hurry on any other terrain I might experiment on). Again, coming from a FJ-62 simple background (and base 460 without these systems) I really wasn't aware of just how sophisticated the different systems are. I'm not sure how much I'll use them but at least now I know how they work and when to use which.

Thanks all!
 
Moby: In North America MTS was only available on fully loaded 460s in Canada. It only became optional on fully loaded 460s in US in 2020. Retrofit for 10-19 is simple plug and play ECU. Your base would not have had MTS. It was on a significant number of vehicles in other markets thoughs.
 
If I recall correctly, in the GX460s with MTS, it will allow sand/mud in 4HI where as in the 2013+ LC/LX to 2015, you can only use MTS in 4LO (that means sand/mud is also 4LO only on the 2013 to 2015 LC200). I am not sure if the 2016+ LC/LX allow sand/mud MTS mode in 4HI. I will let the folks that own the 16+ LC/LX chime in.
OK, great this all is a help on why one would use MT vs. CC. More snow overnight so I got to play with this more this morning. How to get into MTS was my last question, but from what I can tell in H4 it is always in sand/mud mode. In 4L you can pick the mode. But MTS is always "on" in either 4H or 4L. Thus my inability in finding a way to turn it "on".

Is this correct? MTS is always engaged in some mode for the LC200? It is a little confusing because the video above for the Pradeo shows a button for MTS and an "off" setting in the display (or at least I think it is an off for the MTS). Or maybe that button is just changing the MTS settings and that "off" refers to something else?
 
2020+ 460 MTS did away with the ability to run Mud and Sand in 4H.

Rock and Dirt" and "MTS AUTO modes were added as well
 
Newer video, a great example of CC in action (300)

Wow. 7:30 the track is nuts. And this is not a front and rear lockered vehicle.
 
Yeah, personally, i love CRAWL….i use it a lot….on anything technical that does not require speed.
 
I asked this question on another thread and got limited response, but does CRAWL sound as horrible to outside observers as it does inside the vehicle?
 
"Crawl control is a weapon" 6:04

This is the best video of crawl used in a real situation that I have ever seen. The more I use crawl the more I like it. The hardest part for me is just letting it do its thing. I either think it is going too slow or suddenly too fast. One technique I've been playing with is turning it on the lowest speed and then just driving "normal" with my foot on the gas. Then when I get stuck or feel wheel spin, I let my foot off the gas and let it try to crawl through my situation. Yes, you can just hit the button at that moment too but loose all momentum doing it that way plus you will be in whatever speed setting aligns with the MTS setting you had selected.

Sliders are probably next for that 300.
 
I asked this question on another thread and got limited response, but does CRAWL sound as horrible to outside observers as it does inside the vehicle?
Good question. I've never been close on the outside of a 200 using it. I've only in my own with crawl on. I do know that when I've turned it on near random folks on the trail, their heads turn and they have that confused puppy look so I know they hear it.

It probably wasn't coming through in the video audio but the noises seemed less then what I hear on my 200.
 

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