Join Date: Mar 2013
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RE DAC if you have it:
Using this function is something like drinking Absinthe or maybe Yeni Raki. An acquired taste. Scary at first and then with practice, it's still scary. On slight icy hills perhaps it works flawlessly but on the steep hill I come up and down daily (200' in 2/10 of a mile) it can be frightening, even though it has worked every time and gotten me down every time. The hardest part is letting the nanny do the work without interference. Faith in a Nanny is difficult to come by.
The system depends on two cooperating factors: Engine braking (you have to be in L or in first gear or reverse) and your ABS which kicks in about 3mpj/5kph. It is not a constant function so there is this sensation of picking up speed and then the ABS kicks in, chatters and then goes off as you slow and of course the car speeds up a bit again. Your natural reaction when looking down that icy hill is to jump on the brake, but that kills the system, and if there is ice under the snow, Mach speeds are a definite possibility by the next stop sign.
So. In a word. Practice on bare road surfaces until you have a semblance of faith in the system and then you'll still build up a nervous sweat as you look down at what feels like certain impending doom. But it does work. Or it has so far on both snow over ice and a long muddy slip and slide down a sloppy forest road.