AWD, vs. AWD Lock! - Page 2 - Kia Forum

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post #11 of 25 (permalink) Old 11-22-2016, 09:18 AM
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Originally Posted by LMP View Post
OK..interesting info....and from other sources, it seems this system (Dynamax) dates from 2010 on (made in Korea) ... but Magna INternational (Canada) now builds it since 2015 and says it then equips 3rd generation (2016 on) Sorento. DOes tnat mean SOrento 2015 does not have it, or did have it, then made in Korea ?. I will surely explore the underside of my newly acquired 2015 Sorento.
you are good.. dynamax started 2010 on sportage and 2014 sorentos... and 2013 sta fe..
the 2010-13 still uses Borg Warner ITM 3e which is passive, the dynamax is pro-active..

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post #12 of 25 (permalink) Old 12-18-2016, 04:35 PM Thread Starter
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Originally Posted by BCRose View Post
My apologies I did not mean to offend you. I was pointing out that smooth tires on snow might be the issue and not the AWD Lock.
Well I had to get 1 new tire, after I destroyed one on a curb, luckily I almost forgot that I bought the tire &wheel coverage pkge. when new, so the dealer replaced it free of charge, but never checked the alignment, but I always (supposedly) had the tires rotated at every dealer 5k oil change, but then not long ago I noticed the left front tire was more worn on the inside So, I had a friend get me a deal on another new Kumho matching tire, & wheel alignment at Mavis. Yes, the alignment was way out, and I didn't really want to buy a new matching tire, but didn't have money for a whole new set of tires, Although I wanted to > Now the F.L. tire was new, and the F.R. was a 9, and both rears were 6. The Sori finally drives great, without the pulling to the right I had before. So it's been a Tragedy of Error's preventing me from getting better new tires, All this in less then 20k miles!

And to think I traded in my Techno Orange 2011' Sportage Ex AWD with almost new General Altimax RT-43 All- Season tires, 30k miles on them, and still a lot of tread left They were the Best tires I ever had! "Like a tractor in the snow, riding up on top of it!" Better all around, esp. in the Ice & Snow! then my old favorite standby Coopers, used many times.

By the way, I already chkd, The RT-43's don't come in a size, or speed rating I can use on the Sori

Some previous Hyundai/Kia vehicles: 2002 Santa Fe LX V6 AWD, 2005 Tucson LX V6 AWD, 2010 Tucson GLS 2.4L AWD, 2011 Sportage EX 2.4L AWD, 2015 Sorento Ex V6 AWD
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post #13 of 25 (permalink) Old 12-24-2016, 02:05 PM
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Originally Posted by MikDee View Post
Well I had to get 1 new tire, after I destroyed one on a curb, luckily I almost forgot that I bought the tire &wheel coverage pkge. when new, so the dealer replaced it free of charge, but never checked the alignment, but I always (supposedly) had the tires rotated at every dealer 5k oil change, but then not long ago I noticed the left front tire was more worn on the inside So, I had a friend get me a deal on another new Kumho matching tire, & wheel alignment at Mavis. Yes, the alignment was way out, and I didn't really want to buy a new matching tire, but didn't have money for a whole new set of tires, Although I wanted to > Now the F.L. tire was new, and the F.R. was a 9, and both rears were 6. The Sori finally drives great, without the pulling to the right I had before. So it's been a Tragedy of Error's preventing me from getting better new tires, All this in less then 20k miles!



And to think I traded in my Techno Orange 2011' Sportage Ex AWD with almost new General Altimax RT-43 All- Season tires, 30k miles on them, and still a lot of tread left They were the Best tires I ever had! "Like a tractor in the snow, riding up on top of it!" Better all around, esp. in the Ice & Snow! then my old favorite standby Coopers, used many times.



By the way, I already chkd, The RT-43's don't come in a size, or speed rating I can use on the Sori


Sounds like you have varying tread depth in your tires. This is probably your issue. With awd vehicles you typically need to replace all tires at same time.


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post #14 of 25 (permalink) Old 12-24-2016, 02:31 PM
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Sounds like you have varying tread depth in your tires. This is probably your issue. With awd vehicles you typically need to replace all tires at same time.


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I agree with you on this one. I learned my lesson a few years back by thinking that my rear tires were "ok" for one more winter and just replaced the front. Bad mistake. First good snowfall and I did a 360˚ spin down the highway one night as the rear end simply lost traction, fortunately it was very late at night on a rural highway with no traffic, if this had happened during the day it would have been horrific. I learned later that if you choose to do this you should put the best tires on the back. Even though that sounds odd because the front is driven you need the rear to maintain traction and keep the vehicle straight. The tires were about 50% worn so it does not take much.

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post #15 of 25 (permalink) Old 01-18-2018, 01:06 PM
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I think the reason you skid in 4x4 lock is because all tires are getting either 25% or 50/50 power split so if you break traction in the rear (lighter part) you will slide, vs in AWD auto it keeps most of the power to the front wheels and only sends to the back when it needs the help. I found out mine slides around like a greased pig with 4x4 lock but it's a lot more stable with it off.

with that said, the 4x4 lock is useful for digging out of snow or climbing up something, or anywhere you just can't get with AWD auto.
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post #16 of 25 (permalink) Old 01-18-2018, 03:12 PM Thread Starter
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Originally Posted by RazorSky View Post
I think the reason you skid in 4x4 lock is because all tires are getting either 25% or 50/50 power split so if you break traction in the rear (lighter part) you will slide, vs in AWD auto it keeps most of the power to the front wheels and only sends to the back when it needs the help. I found out mine slides around like a greased pig with 4x4 lock but it's a lot more stable with it off.

with that said, the 4x4 lock is useful for digging out of snow or climbing up something, or anywhere you just can't get with AWD auto.
Right On! Exactly my theory on how both of these this things happened. In a turn, the rear wheels would be driven, but have slight drag depending on how much the sensors/ECM figure the AWD needs in normal mode, but when locked they are spinning the same speed, & force as the fronts. IMO, this would cause the rear end to drift to one side or the other on slippery surfaces, depending on driving, or road conditions. In my case with the Sportage, I was in a turn with 4WD locked,decent matched tires, but the road I was turning onto, had a slight bank/slope to the right. Light packed snow covered. I took off easy, but the rearend swung out, & hit the snow covered curb with a Thud! No damage to anything T.G. just startled.

With the Sorento, on a slightly glazed icy blacktop road, going straight easy through the community, coming up to a stop sign, with 4WD locked, i suddenly became aware of the rear end drifting to the left as I was slowing down to stop, so I just took my foot off the brake, coasted, and turned the steering wheel a bit in that direction, and it came about, as I came up to the stop sign. The road had a bit of a crown in the middle to it though, which could possibly be the reason it would cause the rear end to kick out, to one side or the other! Definitely an unnerving condition both times, but a good learning experience about 4WD lock. That's why I posted this here in the 1st place.be careful out there with 4WD lock, in nasty weather.

Some previous Hyundai/Kia vehicles: 2002 Santa Fe LX V6 AWD, 2005 Tucson LX V6 AWD, 2010 Tucson GLS 2.4L AWD, 2011 Sportage EX 2.4L AWD, 2015 Sorento Ex V6 AWD

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post #17 of 25 (permalink) Old 01-18-2018, 06:46 PM
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Originally Posted by RazorSky View Post
I think the reason you skid in 4x4 lock is because all tires are getting either 25% or 50/50 power split so if you break traction in the rear (lighter part) you will slide, vs in AWD auto it keeps most of the power to the front wheels and only sends to the back when it needs the help. I found out mine slides around like a greased pig with 4x4 lock but it's a lot more stable with it off.

with that said, the 4x4 lock is useful for digging out of snow or climbing up something, or anywhere you just can't get with AWD auto.
I have to disagree.

I use 4x4 Lock all the time on bad slushy and deep snow conditions. For me, it works great keeping the vehicle very stable and noteable so compared to not having it turned on.

Cheers,
Monte

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post #18 of 25 (permalink) Old 01-19-2018, 02:18 PM Thread Starter
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Probably So, but now I would be leery of using it on hard packed snow, or icy roads! Possibly even in heavy rain conditions?

Some previous Hyundai/Kia vehicles: 2002 Santa Fe LX V6 AWD, 2005 Tucson LX V6 AWD, 2010 Tucson GLS 2.4L AWD, 2011 Sportage EX 2.4L AWD, 2015 Sorento Ex V6 AWD
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post #19 of 25 (permalink) Old 01-19-2018, 08:26 PM
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You guys are aware that the Lock fades to fully off at 25 MPH and reverts to Auto Mode, eh?

2. LOCK MODE:
A. This mode is used for climbing or descending sharp grades, off-road driving, driving on sandy and muddy
roads, etc., to maximize traction.
B. This mode automatically begins to deactivate at speeds above 30 km/h (19 mph) and is shifted to 4WD
AUTO mode at speed above 40 km/h (25 mph).
If the vehicle speed decelerates to below 30 km/h (19
mph), however, the transfer mode is shifted into 4WD LOCK mode again.
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post #20 of 25 (permalink) Old 05-28-2018, 11:47 AM
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By the way if it becomes necessary to tow that AWD Sorento is a flatbed necessary?
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