[Teneo]

Has anyone had experience with the OR's Hill Descent Control system on icy roads -- how does it differ on a regular down hill ride vs. one with ice or snow?

 

[eXTra fORt]

I don't see the purpose of using the HDC on icy road. Just let the VDC do his job while driving according to the road conditions...

 

[springsx]

What is the purpose of the HDC. Cant you just put your foot on the brake in 4x4 LO and let the ABS control any sliding? Then again its easy to say since I dont have it.

 

[Muzikman]

What is the purpose of the HDC. Cant you just put your foot on the brake in 4x4 LO and let the ABS control any sliding? Then again its easy to say since I dont have it.

Well, I have it and only used it once just to see how it worked. Becuase I never use it, I forget that it's there and there have been a few times it would have been handy.

It's for wheeling, it basically it allows it to act as if you had a low TC range when decending a hill. It pulses the brakes lightly to allow you to decend a hill. There was a time two weeks ago that I could have used it, but forgot about it.

I can't think of a single time when on pavement that it would help. You crawl so slow that it would be impractical on most paved hills.

 

[Jodokast872]

The hill decent is only for off roading on a step grade. I think the xterra already has a variable disc control for when you are in four wheel drive.

 

[Teneo]

So -- HDC does not add any value in snowy or icy conditions -- is that what your saying?

 

[dpatton]

So -- HDC does not add any value in snowy or icy conditions -- is that what your saying?

HDC/HSA don't add any value at all, because to get them you have to pay more in order to get an X with an automatic transmission ;-)