How do you unlock 4x4 on your Nissan Titan?

To unlock 4x4 on your Nissan Titan, first ensure the vehicle is in a safe, flat area and that you are at a low speed (below 60 mph). Then, shift the transfer case lever or use the 4WD switch on the dashboard, depending on your model, to engage 4x4. If you have a manual transfer case, pull the lever to the desired position (4H or 4L), while for electronic systems, simply press the appropriate button. Always refer to your owner’s manual for specific instructions related to your model year.