So the entire large K5 manual does not say 1 word about snow mode. The smaller insert does have just the words ALL WHEEL DRIVE next to snow mode. Can anyone explain further. IS snow mode like 4 wheel drive lock? and if it isnt does it engage awd when needed and when you are not in snow mode is the awd functionality turned off? And the car is simply a fwd car? I found it very strange that the manual doesnt explain this at all!