2010 Nissan Xterra Owner's Manual - Page 209

D (Drive): Use this position for all normal forward driving. 3 (Third gear): Use this position for driving up and down long slopes where engine braking would be advantageous. Do not downshift into the 3 position at speeds over the following and do not exceed the following speeds in the 3 position. 2WD: 99 MPH (160 km/h) 4H: 99 MPH (160 km/h) 4LO: 37 MPH (60 km/h) 2 (Second gear): Use this position for hill climbing or engine braking on downhill grades. Do not downshift into the 2 position at speeds over the following and do not exceed the following speeds in the 2 position. 2WD: 62 MPH (100 km/h) 4H: 62 MPH (100 km/h) 4LO: 21 MPH (35 km/h) 1 (Low gear): Use this position when climbing steep hills slowly or slow driving through deep snow, sand or mud, or for maximum engine braking on steep downhill grades. Do not downshift into the 1 position at speeds over the following and do not exceed the following speeds in the 1 position. 2WD: 37 MPH (60 km/h) 4H: 37 MPH (60 km/h) 4LO: 12 MPH (20 km/h) LSD0141 Shift lock release If the battery is discharged, the shift selector may not be moved from the P (Park) position even with the brake pedal depressed. To move the shift selector, release the shift lock. The shift selector can be moved to N (Neutral). However, the steering wheel will be locked unless the ignition switch is placed in the ON position (for models with a steering lock mechanism). This allows the vehicle to be moved if the battery is discharged. 5-14 Starting and driving