2006 GMC Sierra 1500 Pickup Owner's Manual - Page 141

Recommended Transfer Case Settings Driving Conditions Normal Severe Extreme Vehicle in Tow* Transfer Case Settings 2 {CAUTION: Shifting the transfer case to NEUTRAL can cause your vehicle to roll even if the transmission is in PARK (P). You or someone else could be seriously injured. Be sure to set the parking brake before placing the transfer case in NEUTRAL. See Parking Brake on page 2-52. (N) NEUTRAL: Shift the vehicle's transfer case to NEUTRAL only when towing your vehicle. See Recreational Vehicle Towing on page 4-62 or Towing Your Vehicle on page 4-62 for more information. 4 m (Four-Wheel High): This setting engages your front axle to help drive your vehicle. Use four-wheel high when you need extra traction, such as on snowy or icy roads, or in most off-road situations. m 4 m 4 n N YES YES YES YES *See Recreational Vehicle Towing on page 4-62 or Towing Your Vehicle on page 4-62 for further information. Use these switches to shift into and out of four-wheel drive. You can choose among three driving settings: 2 m (Two-Wheel High): This setting is for driving in most street and highway situations. Your front axle is not engaged in two-wheel drive. 2-47