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  #13  
Old 03-23-2014, 10:34 PM
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Re: Overland selec speed

Actually playing with my lowly V6 I realized that actually I have the Select Speed Control and Hill Ascent Control.

  • Find your favorite multi story parking lot ramp.
  • Place your Jeep in 4-LOW
  • Drive up to the ramp, head a little bit "uphill" and brake, coming to a full stop
  • Engage the Hill Descent Control, release the brake
  • The car will start crawling up the ramp, and your steering will be hard.
  • Try to accelerate with the throttle pedal, it should not work
  • Use the right steering wheel paddle shifter, clicking it should speed up the car to a faster speed, clicking the left one should slow down to a lesser speed.
  • The Select Speed Control works same way on flat ground, by engaging the same buttons.

I have previously used Hill Descent Control in off road situations and it worked very well. But the manual was not clear about the other two features. But they are there, and they sort of all work together as a low speed off road mode cruise control.

As Bill says below, don't try it on dry asphalt. I did it on a snow covered ramp in February. If you must try it for yourself, at least drive very slowly in a straight line only.
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Old 03-23-2014, 10:54 PM
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Re: Overland selec speed

Don't drive on dry pavement in 4 wheel low. It's not good for the drive train.


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Old 03-24-2014, 07:45 PM
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Re: Overland selec speed

Quote:
Originally Posted by Jrunner01 View Post
Hi guys....

Just ordered the 2014 overland 4x4 Eco diesel with the Offroad adventure 2 package. So I assume the up hill ascent control is not going to be in it right?

Is this really a needed option?

What about the v6 gas?

Thanks..
I can't imagine when you would use this option. Not sure you would want to crawl in this fashion on rock or rutted tracks. The GC seems to need a bit of go pedal for the electronics to work in most offroad situations. Maybe on a firm surface where you want to crawl forward slowly. Can't imagine it though.
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Old 03-25-2014, 04:17 PM
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Re: Overland selec speed

I wonder if one would need hill ascent to climb a gravel road if it were steep enough? I recall seeing one road south of Ouray, going off the main road at an incline that looked to me like about 35 degrees. I thought to myself, someday I want to come back here with a Jeep and go up that thing. But would I be able to make it without hill ascent? Or would it be too hard to keep the tires from spinning out?
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Old 03-25-2014, 06:08 PM
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Re: Overland selec speed

Toyota Global Site | Technology File

Basically the driver will not be able to module the brake and the throttle as well as the PCU would to keep the wheels from spinning while ensuring forward progress. I guess these Hill Ascent Control systems are yet another layer in the interaction between ABS and transmission. Our Jeeps, in the absence of locking differentials, tends to move up in bursts - the car will tend to spin wheel(s) up to a point until they are clamped and power is sent in bursts to the wheels with more grip.

I found once a good video of it but I am not going to look for it now.
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Old 03-25-2014, 07:15 PM
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Re: Overland selec speed

Quote:
Originally Posted by Rexlion View Post
I wonder if one would need hill ascent to climb a gravel road if it were steep enough? I recall seeing one road south of Ouray, going off the main road at an incline that looked to me like about 35 degrees. I thought to myself, someday I want to come back here with a Jeep and go up that thing. But would I be able to make it without hill ascent? Or would it be too hard to keep the tires from spinning out?
I'll bet plenty of people drive up that road who never heard of hill assist. Just because there is a computer controlled system available now, remember, the world turned before computers.



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