While approaching snow, pull over and put in 4H, utilize it for uphill. On the way down, in order to save your brakes from damage, put it in 4L but do know that in 4L the gear ratios and torque figures change, so 1st is limited to 10km/h, 2nd to 20 and so on. This information is written on the sun visor. Acha, now if you plan to have fun in the snow, I suggest you arrange for some snow chains to put on your tires in order to be safe