Understanding Awd Button On My 07 Santa Fe - Hyundai Forums : Hyundai Forum
 
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#1 Old 02-02-2011, 12:48 PM
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johnc9909
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Just trying to understand my awd button and how to use it. Is it safe to have button on and drive around with it this way at any speed or are you only suppose to use it when needed. In manual it says it disengages above 25 mph. So in bad weather can you leave it on at any speed or just use it when you need it below 25 mph?
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#2 Old 02-02-2011, 01:18 PM
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QUOTE (johnc9909 @ Feb 2 2011, 10:48 AM)
Quote:
Just trying to understand my awd button and how to use it. Is it safe to have button on and drive around with it this way at any speed or are you only suppose to use it when needed. In manual it says it disengages above 25 mph. So in bad weather can you leave it on at any speed or just use it when you need it below 25 mph?
There's really no point in driving around with AWD engaged manually, and it can be detrimental to your vehicle. If your vehicle believes there's a traction issue, it will begin to couple in power to the rears as necessary - up to 50% front/rear. The only time I've ever engaged manually was when I felt that I was likely to be "stuck", and didn't want to wait for the AWD to engage as I started to press on the gas.

As your manual clearly states: "[b]Do not use AWD LOCK on normal dry pavement conditions."
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#3 Old 02-02-2011, 01:39 PM
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So what you are saying is that awd will kick in on it own when it senses slippage below 25mph even if you don't push the awd lock button?
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#4 Old 02-02-2011, 01:50 PM
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majbach
QUOTE (johnc9909 @ Feb 2 2011, 11:39 AM)
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So what you are saying is that awd will kick in on it own when it senses slippage below 25mph even if you don't push the awd lock button?
Yes. That's the actual definition of AWD (versus 4WD).

http://en.wikipedia.org/wiki/Four-wheel_drive

I too only use the AWD button only when starting out in thick snow or pulling my boat up a ramp and know ahead of time there will be wheel slip.
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#5 Old 02-02-2011, 02:04 PM
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QUOTE (johnc9909 @ Feb 2 2011, 11:39 AM)
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So what you are saying is that awd will kick in on it own when it senses slippage below 25mph even if you don't push the awd lock button?
Yes. There is a sticky (bottom of the "Pinned" list, right above these threads) that describes this stuff: http://www.hyundai-forums.com/t15446-santa...mation-here.htm
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#6 Old 02-02-2011, 02:27 PM
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Thanks, I'm a performance rear wheel drive car guy and this awd stuff is foreign to me. I did not know the system worked on it own and you only needed to push the button if you knew in advance you were in a situation where you wanted it engaged.
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#7 Old 02-02-2011, 03:30 PM
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QUOTE (johnc9909 @ Feb 2 2011, 12:27 PM)
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Thanks, I'm a performance rear wheel drive car guy and this awd stuff is foreign to me. I did not know the system worked on it own and you only needed to push the button if you knew in advance you were in a situation where you wanted it engaged.
I drove "performance rear wheel drive" vehicles for many years, and it certainly took a lot more skill to keep them moving forward in a straight line in winter conditions. Especially true for those vehicles that weren't able to lock up the rears - more like "one wheel drive". You'll find the AWD is a lot easier to work with in the winter (unless you're from Phoenix or somewhere that never sees snow). The advantage of the Hyundai / Borg-Warner system is that there's no mileage penalty for the AWD. Since there's nothing being coupled into the rear unless you need it, you're really FWD until that moment comes. Even a bare FWD would be an improvement, since you're able to steer the driven wheels. Seems to help with understeer.
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#8 Old 02-02-2011, 04:02 PM
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majbach
QUOTE (johnc9909 @ Feb 2 2011, 12:27 PM)
Quote:
Thanks, I'm a performance rear wheel drive car guy and this awd stuff is foreign to me. I did not know the system worked on it own and you only needed to push the button if you knew in advance you were in a situation where you wanted it engaged.
Likewise. This was my first AWD too and I was amazed at how quick and smooth the transition is from FWD to AWD is.
Even more so was the ESC. When I first heard this thing kick in, I thought there was something wrong with my tranny and instantly regretted buying my first Hyundai. Then, I read my owner's manual and sites like this one and learned this is completely normal. I also felt quite old and out of touch too After finding the ESC over ride button, I quickly learned just how much the computer input the computer has under slippery conditions. Just the other day as a matter of fact, I took a turn with some black ice and felt the rear end lose grip. I braced for a spin out and in the same moment, I heard the ABS kick in and the ESC light flicker. The SF corrected the slip condition and I know had I been in my old car, I would have ended up in the ditch.
I have to admit though, I miss having 'fun' on icy roads with rear wheel drive or emergency hand brake; the SF is just too smooth and safe.
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#9 Old 02-02-2011, 11:48 PM
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My 2010 SF is my first car with any sort of electronic rescue device...first car with ABS, Stability Control, and Tire Pressure Monitoring. The stability control that Hyundai uses (I think it's by Bosch) is fabulous. The county was doing some road work a few streets up from us and didn't think it would be necessary to warn anybody about the steel plate they put down overnight. Well I came cooking around that corner right off the main road and since it was raining, that steel plate was soaking wet and as anybody will tell you, those steel plates turn to ice when wet. As soon as I realized that the front end was starting to plow wide (towards the ditch), the ESP brought the back into line just like that and I continued on my way.

- Andrew
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R.I.P. Robin Williams - 1951-2014
"We had gay burglars the other night. They broke in and rearranged the furniture."
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