2009 Dodge Ram 1500 Pickup Owner Manual - Page 332

330 STARTING AND OPERATING WARNING! You or others could be injured if you leave the vehicle unattended with the transfer case in the NEUTRAL position without first fully engaging the parking brake. The transfer case NEUTRAL 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. 4WD LOCK Four-Wheel Drive Lock Range - This range locks the front and rear driveshafts together forcing the front and rear wheels to rotate at the same speed. This range provides additional traction for loose, slippery road surfaces only. 4WD LOW Four-Wheel Drive Low Range - This range provides low speed four-wheel drive. It locks the front and rear driveshafts together forcing the front and rear wheels to rotate at the same speed. This range provides additional traction and maximum pulling power for loose, slippery road surfaces only. Do not exceed 25 mph (40 km/h). For additional information on the appropriate use of each transfer case mode position, see the information below: N Neutral - This range disengages both the front and rear 2WD driveshafts from the powertrain. To be used for flat Rear Wheel Drive High Range - This range is for normal towing behind another vehicle. Refer to "Recreational street and highway driving on dry, hard surfaced roads. Towing" in this section.