2005 Chevrolet Blazer Owner's Manual - Page 98
2005 Chevrolet Blazer Manual
Page 98 highlights
Automatic Transfer Case If your vehicle is equipped with the automatic transfer case, the transfer case buttons are located to the right of the steering wheel on the instrument panel. 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 2HI. 4HI (Four-Wheel High): Use 4HI 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. 4LO (Four-Wheel Low): This setting also engages your front axle and delivers extra torque. You may never need 4LO. It sends maximum power to all four wheels. You might choose 4LO if you are driving off-road in deep sand, deep mud, deep snow and climbing or descending steep hills. Use these buttons to shift into and out of four-wheel drive. You can choose among four driving settings: 2HI (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. AUTO 4WD (Automatic Four-Wheel Drive): This setting is ideal for use when road conditions are variable. While driving your vehicle in AUTO 4WD, 2-32