2009 Nissan Xterra Owner's Manual - Page 222

ELECTRONIC LOCKING REAR DIFFERENTIAL (E-Lock) SYSTEM (if so equipped) The E-Lock system can provide additional traction and should only be used when a vehicle has become or is becoming stuck. This system operates by electronically "locking" the two rear drive wheels together, allowing them to turn at the same speed. The system is used when it is not possible to free a stuck vehicle even when using the 4LO position (4 wheel drive vehicles). When added traction is required, activate the E-Lock system by pushing the switch ON. See "Electronic Locking Rear Differential (E-Lock) system switch" in the "Instruments and Controls" section. Once the system fully engages, the indicator light in the instrument panel will remain ON. When the system is activated, both rear wheels will engage, providing added traction. The rear wheels may momentarily slip or move to engage the system, and the system will only engage up to approximately 4 MPH (7 km/h). Once the vehicle is free, the system should be turned OFF and driving resumed. The Anti-Lock Brake (ABS) system is disabled and the ABS light illuminates when the E-Lock system is ON. Also, the Vehicle Dynamic Control (VDC) system is disabled and the VDC light illuminates when the E-Lock system is ON. WARNING ● Never leave the E-Lock system ON when driving on paved or hard-surfaced roads. Turning the vehicle may result in the rear wheels slipping and result in an accident and personal injury. After using the E-Lock system to free the vehicle, turn the system OFF. ● Use the E-Lock system only when freeing a stuck vehicle. Try the 4LO position before using the E-Lock system. Never use the E-Lock system on a slippery road surface such as snow or ice surface. Using the E-Lock system when driving in these road conditions may cause unexpected movement of the vehicle during engine braking, accelerating or turning, which may result in an accident and serious personal injury. CAUTION ● After using the E-Lock system, turn the switch OFF to prevent possible damage to driveline components from extended use. ● Do not drive the vehicle at speeds faster than 12 mph (20 km/h) when the system is engaged. Doing so could damage drivetrain components. ● Do not turn on the E-lock system while the tires are spinning. Doing so could damage drivetrain components. 5-30 Starting and driving