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Hill descent control

9K views 20 replies 14 participants last post by  Jeeperitis 
#1 ·
Still getting to know my new 2016 JKUR. Thought I understood that Rubicon's are supposed to come with Hill descent control. Maybe I misread that. Read the manual and it said "if Equipped" do this and that and push the "hill descent control button". (found the ESC on and off). Don't seem to have a HDC button. Am I missing something? And yes I am a newbee to the JKUs. CJs and Willys were much simpler. Any insight would be greatly appreciated.
 
#10 ·
YEP! We have a winner. You purchased the "I know how to drive" transmission.

And in saying that my Hard Rock has the "Hill Assist" for the manual. I didn't know why I kept killing the engine....

Read through the EVIC section and it will tell you "how to" turn on/off any items you want/don't want. Personal setting I believe.

Welcome to the New Electric Jeep World.
 
#11 ·
Here is Jeep 101 for you. It could also develop into a 401 class if you want. This is manual-centric information. If you are in a spot where you have heavy snow, mud, incline or decline or just plain slick conditions, then do this: Put your JK in N. Drop into 4WLo. You wont stall and very minimal clutch is needed. Your JK will crawl based on the gear ratios. Your JK will not go fast, but will go very slow. You can shift to higher gears if needed. You have about 3"s of tire contact x 4 on the surface of the conditions. The key point is surface contact and the law of gravity. When your tires are moving, surface retention is key. You could press the throttle and break surface tension. when you break surface tension - you are out of control. Just let your gears do the work and don't worry. You can climb some serious stuff or decent, in 4Wlo. You just have to be aware and patient.
 
#13 ·
People who have auto drive also. Auto allows you to hold a drink and wheel. Manual, not so much. I do love a manual, but prefer an auto for my JKU. The manual in a JKU is clunky and jerky. Purest form it is perfect. I love my 911 in manual. The throws are short and precise. I like starting out in 2nd and shifting up to 4th and then to 6th gear. Then I can drink my beverage.
 
#15 ·
I know, right? Maybe wrong. Auto vs. manual? I like both, but drive a JKU in auto and love it. All my other wranglers were manual and had 2 doors. When I test drove a manual during my last purchase, I was very disappointed in the manual only because it was jerky as hell in 1st and 2nd gear. It was not smooth and required a bunch of clutch. Too much work and my drink spilled.
 
#16 ·
I just limit my auto to 1st gear and call that HDC.

I am amused by people with lockers, disconnects and 37 inch tires, then say they couldn't use an automatic because it eliminates the challenge.

I understand the fun of a manual on the trail, but for every day use, no fun. Due to the torque converter, my 3.21 auto rarely needs 4 low, while my rubi friends are constantly in low. They definitely have more of a challenge there, but I have more of a challenge without lockers. Whatever works.
 
#17 ·
I had a manual s10 zr2 and sold it for my dmax with the Allison, I missed the manual everyday so I had to have it in the jeep. The manual in the jeep does suck though, the first three gears are super short and the last three are super tall. It can be jerky at times :) still love it though. So what exactly does the hdc do? How is it different from my 4lo first gear?
 
#18 ·
Manual is still a cop-out for companies to make stuff cheap and maximize profits. The future is auto with available double-clutch manual shifting. PROPER modern slush boxes will also last longer than just about any other wear item (and yes that includes zero fluid changes). Operative word here is PROPER, which might never be in FCA's vocab.

But back on topic... What would be different about HDC than M1? And what would 4-Lo do for, say icy downhills, that A or B would not do? Just trying to get a grasp... I've done 360s in subarus going down my own residential street, at 2mph, in light freezing rain so it's rather important to me.
 
#19 ·
Hill Descent is awesome. I don't care what some others are saying. It works pretty simple. Jeep must be in 4L. Push the HD button, and it will apply the anti-lock brakes to each wheel independently and keep you at an exact speed depending on the gear you are in. Auto trans: 1st gear=1mph, 2nd=2mph, 3rd=3mph and so on. I used this on Black Bear Pass and a few hairy rides in Colorado. I loved it. I went down some steep rocky crap with very little sliding and without touching the breaks. Lazy...I don't care what you call it, but it worked like a charm. The Rubi masters that were with me used it also.
 
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