2004 Nissan Titan Owner's Manual - Page 205

WARNING Apply the parking brake if the selector lever is in any position while the engine is not running. Failure to do so could cause the vehicle to move unexpectedly or roll away and result in serious personal injury or property damage. If the key is turned to the OFF or ACC position for any reason while the vehicle is in N (Neutral), or any D (Drive) position, the key cannot be turned to the LOCK position and be removed from the ignition switch. Move the selector lever to the P (Park) position, then the key can be turned to LOCK. P (Park): Use this selector position when the vehicle is parked or when starting the engine. Make sure the vehicle is completely stopped. The brake pedal must be depressed to move the selector lever from N (Neutral) or any drive position to P (Park). Apply the parking brake. When parking on a hill, apply the parking brake first, then move the shift selector lever into the P (Park) position. R (Reverse): CAUTION Use this position only when the vehicle is completely stopped. Use this position to back up. Make sure the vehicle is completely stopped before selecting the R (Reverse) position. The brake pedal must be depressed to move the selector lever from P (Park), N (Neutral) or any drive position to R (Reverse). N (Neutral): Neither forward nor reverse gear is engaged. The engine can be started in this position. You may shift to N (Neutral) and restart a stalled engine while the vehicle is moving. D (Drive): Use this position for all normal forward driving. LSD0099 To move the selector lever: : Shift while depressing the brake pedal : Shift without depressing brake pedal Shifting - column After starting the engine, fully depress the brake pedal and move the shift selector lever out of the P (Park) position. Starting and driving 5-13