1996 Ford F150 Owner's Manual - Page 52

RWARNING LOCK position does not lock the gearshift on floor-mounted gearshifts. If the parking brake is not set and the gearshift is moved out of Park (automatic transmission) or out of gear (manual transmission), your vehicle may move unexpectedly. With the transfer case in N (Neutral), the vehicle is free to move with either the automatic transmission in P (Park) or with the manual transmission in any driving gear. RWARNING Do not leave the vehicle unattended with the transfer case in the N (Neutral) position. Always set the parking brake fully and turn off the ignition when leaving the vehicle. LOCK is the only position that allows you to remove the key. The LOCK feature helps to protect your vehicle from theft. If the key is stuck in the LOCK position, move the steering wheel left or right until the key turns freely. ACCESSORY allows some of your vehicle's electrical accessories such as the radio and the windshield wipers to operate while the engine is not running. In order to turn the key from the ON or OFF position to the ACCESSORY position, you must push the key release button if your vehicle's manual transmission gearshift is mounted on the floor. 50