1996 Chevrolet Tahoe Owner's Manual - Page 83

4HI: This setting engages your front axle to help drive your vehicle. Use 4HI when you need extra traction, such as on snowy or icy roads, or in most off-road situations. 4LO: This setting also engages your front axle'togive you extra traction. You may never need 4LO. It sends the maximum power to all four wheels. You might choose 4LOif you were driving off-road in sand, mud or deepsnow and climbing or descending steep hills. Indicator lights in the switches show you which setting you are in. The indicatorlights will come on briefly when ,you turn on the ignition and one will stay on. If the lights donot come on,you should take your vehicle in forservice. An indicator light will flash while shifting. It will remain illuminated when the shift is completed. Shifting from 4HI 2HI to Press and release the 2HI switch. This can be done at any speed, and the system will unlock automatically. Shifting from2HI or 4HI to 4LO To shift from 2HIor 4HI to 4L0, the vehicle must be stopped or moving less than 3 mph (4.8 km/h) with the transmission in NEUTRAL (N). The preferred method for shifting into 4LO isto have your vehicle moving 1 to 2 mph (1.6 to 3.2 km/h). Press and release the 4LO switch. You must wait for the 4LO indicator light to stop flashing and remain illuminated before shifting your transmission into gear. If the 4LO switch is pressed when your vehicle is in gear and/or moving, the 4LO indicator light will flash for 30 seconds and not complete the shift unless your vehicle is moving slower than 3 mph (4.8 km/h) and the transmission is in NEUTRAL (N). Shifting from 2HI to 4HI ,Press and release the 4HI switch. This can be done at any speed, and the indicator light will flash while shifting. It will remain illuminated when theshift is completed.