2004 Nissan Titan Owner's Manual - Page 217

ELECTRONIC LOCKING REAR DIFFERENTIAL SYSTEM (if so equipped) High-temperature transfer case oil makes the warning light blink rapidly (about twice per second). If the warning light blinks rapidly during operation, stop the vehicle in a safe place immediately. Then if the light goes off after a while, you can continue driving. A large difference between the diameters of front and rear wheels will make the warning light blink slowly (about once per two seconds). Change the 4WD shift switch into 2WD and do not drive fast. ● Do not drive the vehicle in the 4H or 4LO position on dry hard surface roads. Driving on dry, hard surfaces in 4H or 4LO may cause unnecessary noise, tire wear and increased fuel consumption. If the 4WD warning light turns on when you are driving on dry hard surface roads: ● in the 4H position, shift the 4WD shift switch to 2WD. ● in the 4LO position, stop the vehicle, move the automatic transmission shift selector lever to the N position with the brake pedal depressed, and shift the 4WD shift switch to 2WD. ● If the warning light is still on after the above operation, have your vehicle checked by a NISSAN dealer as soon as possible. ● The transfer case may be damaged if you continue driving with the warning light blinking rapidly. The electronic locking rear differential system can help provide additional traction when one of the rear wheels has lost traction or when the vehicle is driven in off-road conditions such as in mud, snow or sand. Activate the system before driving the vehicle in areas where the vehicle can become stuck. ● When additional traction is required activate the electronic locking rear differential system by pushing the switch ON, see "Electronic Locking Rear Differential System Switch" in the "Instruments and controls" section. ● Once the system fully engages the indicator light will remain on in the instrument panel, see "Electronic locking rear differential system on indicator light" in the "Instruments and controls" section. ● When the system is activated both rear wheels will engage providing additional traction. The rear wheels may momentarily slip or have to turn at different speeds to engage the system (for example, if the vehicle is turned left or right). CAUTION ● If the warning light comes on or blinks slowly during operation or rapidly after stopping the vehicle for a while, have your vehicle checked by a NISSAN dealer as soon as possible. ● Shifting between 4H and 4LO is not recommended when the 4WD warning light turns on. ● When the warning light comes on, the 2WD mode may be engaged even if the 4WD shift switch is in 4H. Be especially careful when driving. If corresponding parts are malfunctioning, the 4WD mode will not be engaged even if the 4WD shift switch is shifted. Starting and driving 5-25