2006 Chevrolet Silverado 3500 Pickup Owner's Manual - Page 141
2006 Chevrolet Silverado 3500 Pickup Manual
Page 141 highlights
Shifting from Two-Wheel High or Four-Wheel High to Four-Wheel Low Notice: Shifting the transfer case into Four-Wheel Low while moving at speeds faster than 3 mph (5 km/h) may cause premature wear to the transfer case, and may cause the gears to grind. To avoid causing premature wear, and grinding the gears, do not shift the transfer case into Four-Wheel Low while the vehicle is moving faster than 3 mph (5 km/h). To shift from Two-Wheel High or Four-Wheel High to Four-Wheel Low, the vehicle must be stopped or moving less than 3 mph (5 km/h) with the transmission in NEUTRAL (N) for an automatic transmission or the clutch pedal pressed for a manual transmission. The preferred method for shifting into four-wheel low is to have your vehicle moving 3 mph (5 km/h). Press and release the Four-Wheel Low switch. You must wait for the four-wheel low indicator light to stop flashing and stay on before shifting your transmission into gear or releasing the clutch pedal. Notice: Shifting the transmission into gear before the Four-Wheel Low indicator light has stopped flashing could damage the transfer case. To help avoid damaging your vehicle, always wait for the Four-Wheel Low indicator light to stop flashing before shifting the transmission into gear. If the Four-Wheel Low switch is pressed when your vehicle is in gear and/or moving, the Four-Wheel Low indicator light will flash for 30 seconds and not complete the shift unless your vehicle is moving slower than 3 mph (5 km/h) and the transmission is in NEUTRAL (N). The transfer case will shift to Four-Wheel High while waiting to complete the shift. Shifting from Four-Wheel Low to Four-Wheel High or Two-Wheel High To shift from four-wheel low to Four-Wheel High or Two-Wheel High, your vehicle must be stopped or moving less than 3 mph (5 km/h) with the transmission in NEUTRAL (N) for an automatic transmission or the clutch pedal pressed for a manual transmission. The preferred method for shifting out of Four-Wheel Low is to have your vehicle moving 3 mph (5 km/h). Press and release the Two-Wheel High or Four-Wheel High switch. You must wait for the Two-Wheel High or Four-Wheel High indicator light to stop flashing and remain on before shifting your transmission into gear or releasing the clutch pedal. If the Four-Wheel High switch is pressed when your vehicle is in gear and/or moving, the Four-Wheel High indicator light will flash for 30 seconds but will not complete the shift unless the vehicle is moving slower than 3 mph (5 km/h) and the transmission is in NEUTRAL (N). 2-47