2010 Chevrolet Suburban 2500 Owner's Manual - Page 27

Automatic Transfer Case 2 m (Two-Wheel-Drive High): This setting is used for driving in most street and highway situations. AUTO (Automatic Four-Wheel Drive): This setting is ideal for use when road surface traction conditions are variable. 4 m (Four-Wheel High): Use the Four-Wheel-Drive High position when extra traction is needed, such as on snowy or icy roads or in most off-road situations. 4 n (Four-Wheel-Drive Low): Vehicles with a two speed transfer case have a Four-Wheel-Drive Low position. This setting sends maximum power to all four wheels. You might choose Four-Wheel-Drive Low if you are driving off-road in deep sand, deep mud, deep snow, and while climbing or descending steep hills. N (Neutral): Vehicles with a two speed transfer case have a N (Neutral) position. Shift the transfer case to N (Neutral) only when towing the vehicle. See Recreational Vehicle Towing on page 5‑43 or Towing Your Vehicle on page 5‑43. See Four-Wheel Drive (Two Speed Automatic Transfer Case) on page 3‑41 or Four-Wheel Drive (Single Speed Automatic Transfer Case) on page 3‑46. Two Speed Transfer Case Single Speed Transfer Case The transfer case knob is located next to the steering column. Use this knob to shift into and out of the different Four-Wheel Drive modes. 1-21