Hill decent control clicking noise

[Terrymo]

If your hill decent is staying engaged while your foot is on the throttle (to climb a hill), you definitely need it checked out.

When activated, hill descent is only supposed to function when your foot is off the accelerator. If your Jeep tries to go faster than commanded. It’ll pulse the brakes to maintain speed while ensuring minimal wheel skidding. If it’s applying your brakes while you’re pushing the accelerator, that’s definitely a problem.

Going up a hill, what’s the advantage of this over selec-speed control?

Sponsored

 

[VKSheridan]

Going up a hill, what’s the advantage of this over selec-speed control?

There isn’t that I can think of Terry.

I’m envisioning OP setting his decent speed to 5 mph, everything working fine and then he gets near the bottom, hits the gas and his brake pads aren’t letting go, hence the pad rattle or click.

Another guess might be he’s having hill decent working overtime on a long hill with a well loaded Jeep causing them to swell and partially heat seize.

Or he has warped rotors and only notices the hit and miss contact after the pads heat from extended use going down a hill, hence they click when “unloaded”, including up hill travel when his foot is (expectedly) off the brake pedal.

OP didn’t leave enough clues…..LOL

 

[Terrymo]

There isn’t that I can think of Terry.

I’m envisioning OP setting his decent speed to 5 mph, everything working fine and then he gets near the bottom, hits the gas and his brake pads aren’t letting go, hence the pad rattle or click.

Another guess might be he’s having hill decent working overtime on a long hill with a well loaded Jeep causing them to swell and partially heat seize.

Or he has warped rotors and only notices the hit and miss contact after the pads heat from extended use going down a hill, hence they click when “unloaded”, including up hill travel when his foot is (expectedly) off the brake pedal.

OP didn’t leave enough clues…..LOL

Ok thanks…I have to admit I’ve never left hill descent on when going back up a hill. I guess I need to try it.

 

[VKSheridan]

Ok thanks…I have to admit I’ve never left hill descent on when going back up a hill. I guess I need to try it.

Yeah, think of it as a downhill cruise control. It will apply and release the brakes as needed to keep to the set speed but it won’t use the throttle if the speed drops because you ran out of hill. If you use the throttle, HDC doesn’t interfere but will immediately resume speed control once you get off the pedal.

Same if you push the brake pedal. You brake to go slow over a bump, HDC will resume brake control to the specified speed if your Jeep picks up speed from the hill.

It’s pretty neat but it does have faults as it will ride the brakes to smoke if you’re loaded heavy on a long, steep hill and let ‘er ride.

Clicks and buzzing from the ABS and pad chatter is normal going down the hill but not so much going up hill unless the sound is from pad chatter (warped rotor or dragging pads).

 

[IceBerg]

I hate the computer controlled hill descent.

I put my trans in 1st/2nd and use my brake to slow down/speed up as needed.

Maybe I am dumb or uneducated on it but I see no use for it as a feature.

 

[BRuby]

We tested out this "HDC" feature the very first week we got our 2018 JLUR seven years ago down a very steep single track with large boulders and deep potholes and deep ruts. Then we had to go up a small 10' incline before dropping down again.

So found out back then the HDC also works going up which was very interesting and not expected.

Insofar as the noise - it makes a ton and was a bit too much. So we turned it off as it seems to tax the ABS system much more than normal and heated the rotors way too much. Crawling down at a very specific set speed is not normal in any way. So was better to just manually brake varying the speed to suit the moment and terrain.

Going at a set speed then varying +/- was just too cumbersome. But test it yourself as it may work for your situation. We have never used it since. Haha!

 

[Ratbert]

Hill start assist to prevent rollback or is this something else? I guess I have more learning to do.

It's the duck button. It maintains the specified speed no matter if you're going up hills or down.

I've only played with it while climbing once (China Wall on the China Wall trail: https://www.trailsoffroad.com/US/colorado/trails/254-china-wall) and it did surprisingly well. You let go of the brake and it just climbs.

 

[Terrymo]

It's the duck button. It maintains the specified speed no matter if you're going up hills or down.

I've only played with it while climbing once (China Wall on the China Wall trail: https://www.trailsoffroad.com/US/colorado/trails/254-china-wall) and it did surprisingly well. You let go of the brake and it just climbs.

https://www.jlwranglerforums.com/fo...control-vs-hill-descent-control-solved.70059/

Well it appears there are two separate options with duck buttons depending on the year and model maybe
I have a 23 3.6 Rubicon auto with Selec-speed with a duck traveling horizontally as opposed to hill descent with a duck traveling downhill. I’m sure mine must be better somehow

 

[Ratbert]

https://www.jlwranglerforums.com/fo...control-vs-hill-descent-control-solved.70059/

Well it appears there are two separate options with duck buttons depending on the year and model maybe
I have a 23 3.6 Rubicon auto with Selec-speed with a duck traveling horizontally as opposed to hill descent with a duck traveling downhill. I’m sure mine must be better somehow

Weird. The duck in my '22 JLURD knows how to climb and dive.

Sponsored