1998 Chevrolet Blazer Owner's Manual - Page 104

4LO: This setting also engages your front axle to give you extra traction. You may never need 4LO. It sends the maximum power to all four wheels. You might choose 4LO if you were driving off-road in sand, mud or deep snow and climbing or descending steep hills. Indicator lights in the switches show you which setting you are in. The indicator lights will come briefly when on you turn on the ignition and will stay on. If the lights one do not come on, you should take your vehicle for in service. An indicator light will flashwhile shifting. It will remain illuminated when the shift is completed. with an automatic transmissionor the clutch pedal engaged in vehicles equipped witha manual transmission. The preferred methodfor shifting into 4LO is to 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 4LOindicator light to stop flashing and remain illuminated before shifting your transmission into gear or releasing the clutch pedal. If the 4LO switch is pressed when your vehicleis 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 mph (4.8 k m h ) and 3 the transmission is in NEUTRAL (N) the clutch or pedal engaged. On automatic transmission equipped vehicles, your if transfer case does not shift into 4L0, your transmission indicator switch may require adjustment. With your transmission in NEUTRAL ( ) press and release the N, 4LO switch. While the 4LO indicator light is flashing, shift your transmission PARK (P). Waituntil the into 4LO indicator light remains illuminated before shifting your transmission into gear. This will get youinto 4L0, but you should take your vehicle in service to restore for normal operation. Shifting from 2HI to 4HI Press and release the 4HI switch. This can be done at any speed, and the front axle will lock automatically. Shifting from 4HI to 2HI Press and release the 2HI switch. This can be doneat any speed, and thefront axle will unlock automatically. Shifting from 2HI 4HI to 4LO or To shift from 2HI or 4HI to 4L0, the vehicle mustbe stopped or moving less than 3 mph (4.8 kmh) with the transmission in NEUTRAL (N) in vehicles equipped 2-30