1995 GMC Sonoma Owner's Manual - Page 75

The front axle portion the diagram on the indicator light up when of will you shift intofour-wheel drive. A slight delay between shifting and the the pattern's lighting isnormal. If the pattern does not light up,ifor front axle lightsdo not go out after shift outof four-wheel drive, have your you dealer check your system. Turn the INT LIGHTS switch located to the right of your headlight switch to your transfer case indicator light your dim when headlights or parking lights are This will also cause your instrument on. panel lights to dim. 2HI - This setting is for driving in most street and highway situations. Your front axle is not engaged two-wheel drive. in 4HI -This setting engages your front axle to help drive vehicle. Use your 4HI whenyou need extra traction, such on snowy oricy roads, or in as most off-road situations. N SET PARK BRAKE - Shift to this neutral setting only when your vehicle needs to be towed. 4LO -This setting also engages your front axle to you extra traction give and provides extra gear reduction. may never need4LO. It sendsthe You maximum power tol four wheels. You might choose 4LO you were al if driving off-road in sand, mud, deep snowand climbing or descending or steep hills. You can shift from 2HI to 4HI or from 4HI to 2HI while the is vehicle moving. Do not press the transfer case shift lever button when shifting from 2HI to 4HI from4HI to2HI. Your front axle will engage fasterif you or take your foot of the accelerator for a few seconds after shift. off you To shift your transfer case into SET PARK BRAKE: N 1. Stop the vehicle and shift your transmission into NEUTRAL (N). 2. Set the parking brake. Your vehicle can roll unless the brakes are applied. 3. Pull the transfer case shift lever intoSET PARK BRAKE. N To shift into or out 4LO: of 1. The vehicle must be stopped or moving less than 3 mph (4.8 km/h) with the transmission NEUTRAL (N) for an automatic in transmission or the clutch pedal depressed with a manual transmission. 2. Press the transfer case shift button and shiftone continuous motion. in of Don't pausein N SET PARK BRAKE asyou shift into or out 4LO, or your gears could clash. Remember that driving in 4HI or 4LO reduce fueleconomy. Also, may driving in four-wheel drive on dry pavement could cause your tires to wear faster and make your transfer case harder to shift and reduce powertrain longevity. 2-29