2006 Chevrolet Avalanche Owner's Manual - Page 108

Four-Wheel Drive If your vehicle has four-wheel drive, you will see the buttons shown below. You can send your engine's driving power to all four wheels for extra traction. To get the most satisfaction out of four-wheel drive, you must be familiar with its operation. Read the part that follows before using four-wheel drive. Notice: Driving on clean, dry pavement in Four-Wheel-Drive High or Four-Wheel-Drive Low for an extended period of time may cause premature wear on your vehicle's powertrain. Do not drive on clean, dry pavement in Four-Wheel Drive High or Four-Wheel-Drive Low for extended periods of time. The transfer case buttons are located to the left of the instrument panel cluster. The front axle locks and unlocks automatically when you shift the transfer case. Some delay for the axle to lock or unlock is normal. For information on StabiliTrak®, see StabiliTrak® System on page 4-9. Use these buttons to shift into and out of four-wheel drive. You can choose among four driving settings: AUTO 4WD (Automatic Four-Wheel Drive): This setting is ideal for use when road surface traction conditions are variable. When driving your vehicle in AUTO 4WD, the front axle is engaged, but the vehicle's power is sent only to the rear wheels. When the vehicle senses a loss of traction, the system will automatically engage four-wheel drive. Driving in this mode results in slightly lower fuel economy than Two-Wheel High. 2 m (Two-Wheel High): This setting is used for driving in most street and highway situations. Your front axle is not engaged in two-wheel drive. This setting also provides the best fuel economy. 4 m (Four-Wheel High): Use the four-wheel high position when you need extra traction, such as on snowy or icy roads or in most off-road situations. This setting also engages your front axle to help drive your vehicle. This is the best setting to use when plowing snow. 2-34