2007 Dodge Ram 1500 Pickup Owner's Manual - Page 325

STARTING AND OPERATING 325 WARNING! You or others could be injured if you leave the vehicle unattended with the transfer case in the Neutral (N) position without first fully engaging the parking brake. The transfer case Neutral (N) position disengages both the front and rear driveshafts from the powertrain and will allow the vehicle to move regardless of the transmission position. The parking brake should always be applied when the driver is not in the vehicle. For additional information on the appropriate use of each transfer case mode position see the information below: 2WD Rear Wheel Drive High Range - Normal street and highway driving. Dry hard surfaced roads. 4WD AUTO Automatic 4-wheel drive sends power to the rear wheels. 4-wheel drive will be automatically engaged when the vehicle senses a loss of traction. Additional traction for varying road conditions. 4WD HI 4 Wheel Drive High Range - Locks the front and rear driveshafts together. Forces the front and rear wheels to rotate at the same speed. Additional traction for loose, slippery road surfaces only. 5