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post #1 of 16 Old 11-27-2015, 09:15 PM Thread Starter
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Question Hill descent control

New to the JKU world. Owned several very old Jeeps before and now have modernized. Bought a new 2016 JKU Rubicon. I was under the impression that all new Rubicons came with Hill Descent Control (HDC). However, I do not have a HDC button as indicated that I would need to push to activate this feature. Was I wrong to assume it came with this feature? I do have the electronic vehicle info center but would not think it would be hidden there. Or for the new models it just activates under certain circumstances when in 4L? Any insight would be appreciated.
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post #2 of 16 Old 11-27-2015, 10:27 PM Thread Starter
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Just found out that it only comes with automatic transmissions. Mine is a manual. Too many electronic features.
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post #3 of 16 Old 11-30-2015, 01:21 AM
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Quote:
Originally Posted by mtank16 View Post
Just found out that it only comes with automatic transmissions. Mine is a manual. Too many electronic features.
Yeah, you really don't need it with a manual because of the trans holding the gear. With an auto, if you don't shift down, it can run away with you.

That said, I've probably not used mine (2012 model) more than a dozen times, and most of those were just playing around. I still remember when you could reach under the dashboard to access the wiring to the ignition switch, radios were AM and a few FMs, and Lincolns and Cadillacs were the only things with power windows -- oh, and there was no such thing as the EPA, emissions equipment, or a Japanese car (at least in my neck of the woods). So yeah, these things have way too many nannies on them.

No HDC? Just one less thing to fail and cost you money.

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Last edited by UnlimiDozer; 12-02-2015 at 02:45 PM.
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post #4 of 16 Old 11-30-2015, 05:28 PM
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It seems to be pretty much only a thing for people who don't know what they're doing. What's so hard about dropping it down a gear?
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post #5 of 16 Old 11-30-2015, 05:40 PM
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I think it serves a purpose, especially with a Rubicon. A lot of the time I don't have my Jeep in 4 low and in 1st gear high range it coasts pretty fast. It is easier to push the hill descent button than it is to shift into low, go down the hill, and shift back into 4 high.

I still only use it on really steep descents. I also hate riding my brakes.
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post #6 of 16 Old 12-01-2015, 12:37 AM
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got a question
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post #7 of 16 Old 12-01-2015, 02:07 PM
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I used mine a couple times when I was in Moab last September. I've got a auto Sahara

2014 JKU, Tera44, 4.56 gears, ARB lockers, RK 3.5" flex lift, ARB front & rear bumper, dual Viair 400C w/2 gallon tank, Zeon 10S, Nitto Tires, Genesis Dual battery kit, TeraFlex tie rod & flipped drag link, ARB Intensities and TeraFlex dual rate ST sway bar.
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post #8 of 16 Old 12-22-2015, 07:00 PM
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re: hill descent

It does a lot more than that....

It actually modulates the brakes for each wheel, independently, as well as using engine braking. It's not "necessary" or anything, but it works well on really steep hills -- including situations where loose gravel or ice mean you'd otherwise risk the Jeep sliding sideways, off a trail, as it descends.

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It seems to be pretty much only a thing for people who don't know what they're doing. What's so hard about dropping it down a gear?
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post #9 of 16 Old 12-22-2015, 07:42 PM
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What year did this start coming with the Rubicon autos? Mines and 08 and I haven't seen anything for it.

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post #10 of 16 Old 12-22-2015, 07:57 PM
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I have hit that button twice with nose-up on a parked stop; it can really help take a load off the tranny on steep stops but I prefer playin with the brakes and no use of Parking gear; just a force of habit. Out of 20 some-odd autos and Jeeps, I have this JKU as my first automatic ever and it scares the begeezus outta me but I have grown used to auto slushbox benefits when crawling stuff ...heh; this made me realize I have only used Hill Descent for hill ascent ...I have never used it to actually descend anything plus I always have the kill switch for the power assists flicked-on when I am on rocks...


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post #11 of 16 Old 12-23-2015, 10:09 AM
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Traction Tools are Good!

In my humble opinion, Hill Descent Control is a marvelous "tool." The gentleman that requested the information lists himself as a new off-roader. HDC is wonderful for this individual, and for seasoned veterans as well (given the right circumstances; I use my HDC frequently).HDC allows you to focus solely on steering an easy path (“picking a good line”) off-road, as there is no need to brake or accelerate while traveling down steep hills. HDC uses the ABS brake system to control each wheel’s speed, while the vehicle’s computer modulates the accelerator without driver input. This control can limit wheel spin, allowing drivers to be confident that the ride down hills with slippery or rough terrain can be smooth and controlled as long as traction exists. Just because I don't use my 13mm wrench often, doesn't mean it can't come in handy as an important "tool." Why criticize the use of any tool? I have a 1986 CJ, and a 2004 TJ... I'd take my "tool" packed JK over any of my other vehicles and twice on Sunday.
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post #12 of 16 Old 12-23-2015, 10:24 AM
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Quote:
Originally Posted by bobwohlers View Post
In my humble opinion, Hill Descent Control is a marvelous "tool." The gentleman that requested the information lists himself as a new off-roader. HDC is wonderful for this individual, and for seasoned veterans as well (given the right circumstances; I use my HDC frequently).HDC allows you to focus solely on steering an easy path (“picking a good line”) off-road, as there is no need to brake or accelerate while traveling down steep hills. HDC uses the ABS brake system to control each wheel’s speed, while the vehicle’s computer modulates the accelerator without driver input. This control can limit wheel spin, allowing drivers to be confident that the ride down hills with slippery or rough terrain can be smooth and controlled as long as traction exists. Just because I don't use my 13mm wrench often, doesn't mean it can't come in handy as an important "tool." Why criticize the use of any tool? I have a 1986 CJ, and a 2004 TJ... I'd take my "tool" packed JK over any of my other vehicles and twice on Sunday.
Where did anyone criticize the HDC tool? We just offered our personal usage info ( which varies, of course) ; I saw no post other than thzpcs' that might be misconstrued as critical , but most were just not too familiar with it ....sure, it can be useful!


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post #13 of 16 Old 12-23-2015, 10:35 AM
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"It seems to be pretty much only a thing for people who don't know what they're doing." That is a criticism...

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post #14 of 16 Old 12-23-2015, 12:25 PM
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Quote:
Originally Posted by bobwohlers View Post
"It seems to be pretty much only a thing for people who don't know what they're doing." That is a criticism...
yes, sir, I acknowledged that .... I took it to be directed towards the whole group of repliers - it's just an misunderstanding that can occur on forums ; had you said, " Why criticize the use of any tool, thzpcs?" I wouldn't have responded at all....
no harm no foul....I agree it can/is useful for the right diver at the right time, as Chrysler designed it to be.


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post #15 of 16 Old 12-23-2015, 03:00 PM
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Quote:
Originally Posted by bobwohlers View Post
In my humble opinion, Hill Descent Control is a marvelous "tool." The gentleman that requested the information lists himself as a new off-roader. HDC is wonderful for this individual, and for seasoned veterans as well (given the right circumstances; I use my HDC frequently).HDC allows you to focus solely on steering an easy path (“picking a good line”) off-road, as there is no need to brake or accelerate while traveling down steep hills. HDC uses the ABS brake system to control each wheel’s speed, while the vehicle’s computer modulates the accelerator without driver input. This control can limit wheel spin, allowing drivers to be confident that the ride down hills with slippery or rough terrain can be smooth and controlled as long as traction exists. Just because I don't use my 13mm wrench often, doesn't mean it can't come in handy as an important "tool." Why criticize the use of any tool? I have a 1986 CJ, and a 2004 TJ... I'd take my "tool" packed JK over any of my other vehicles and twice on Sunday.
After reading this I think I will use it more often. I might try the same hill twice to see the difference.
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post #16 of 16 Old 10-15-2019, 08:27 PM
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Low gear, 4x4, if really steep lockers. On a 6% grade I have give it gas to mke it roll. 2009 JKUR.
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