Originally Posted by Northerner 2
Thanks all for the helpful information. After doing much research last night I am pretty sure I have figured out the system - just as phillyguy detailed. I was under the mistaken impression that the 4 WD lock button would lock the wheels - spoke with my dealer who was under the same mistaken impression! Appears to me that the button/switch is a manual way of doing what the computer will do when it detects slippage - probably the brain-child of the marketing department! Anyway, I got up the hill a couple of times to-day - just, but in fairness it is a steep driveway - a fairly tough walk even in the summer and we have some snow here a couple of hours north of Toronto. Just a bit disappointed because my old Lexus never hesitated once and I have good snow tires on each.
Sorry to lose my cool on franxalot last evening - was frustrated with the issue and didn't need less than helpful comments at that point.
I didn't read your first post closely enough, I thought you still had OEM tires on the Sorento. With good tires on it I am surprised that it struggled like that. I have tested mine on a very steep cobble stone road in the snow with the lousy OEM tires and it made it up without a hickup.
I hope that your getting stuck was just a fluke of lousy conditions, because the Sorento should really be able to make it up a snowy hill with decent tires on it. It is possible that the stability control is too aggressive in cutting the throttle, and that has given you some issue as well. Have you experimented with and without the stability control on?