1996 Ford Ranger Owner's Manual - Page 172

Electric shift system indicator lights A 4WD indicator light and a 4WD LOW indicator light are located in the instrument cluster. If either light flashes, take your vehicle in for service. s Two-Wheel Drive mode - Neither the 4WD nor the 4WD LOW lights are lit. s 4WD High - Only the 4WD light is lit. s 4WD LOW mode - Both the 4WD and 4WD LOW lights are lit. To shift from Two-Wheel Drive to 4WD High: To shift into 4WD High rotate the 4WD switch located on the instrument panel to 4x4 High. This shift can be done at a stop or at speeds up to 55 miles per hour (88 km/h). When the vehicle is driven, the automatic locking hubs will engage. If the vehicle is stopped while in 4WD and the vehicle direction is reversed from the previous direction, the automatic locking hubs will momentarily disengage and reengage. The automatic locking hubs may click as they automatically engage in the new direction. Select drive rotary switch 172