2010 Chevrolet Silverado 1500 Regular Cab Owner's Manual - Page 29

Automatic Transfer Case 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. N (Neutral): Shift the transfer case to Neutral only when towing the vehicle. See Recreational Vehicle Towing on page 5‑44 or Towing a Trailer on page 5‑51. 4 n (Four-Wheel-Drive Low): 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. See Four-Wheel Drive on page 3‑36. This transfer case knob is located next to the steering column. Each transfer case design offers different drive options. The list below described the different drive options that may be available. 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. 1-23