Armada is my first 4x4 vehicle and I was planning to visit Sierrra during this Snow Storm ( weather permitting). Just wondering as to what 4WD mode is suitble for Snow. I understand from reading the maual that for hi torque and low speed we need to engage 4Lo but wont 4 auto work ok in Snow? What about 4 Hi in low speeds on snow? How do you see in 4 auto whether vehicle is engaging all four wheels or just two? Any advice is apprecaited. thanks.