What does the 'Lock Mode' button do in my Kia Sorento?

I recently purchased a Kia Sorento and noticed a button next to the gear shift labeled 'Lock Mode'. What does this button do and when should I use it?

The 'Lock Mode' button activates a feature that locks the center differential, allowing for better traction in slippery conditions. This should be used when driving in snow, ice, or muddy terrain.

The 'Lock Mode' button also adjusts the SUV's torque distribution between the front and rear axles, providing better stability and control in off-road situations. Use it when traversing rough terrain or steep inclines.

It's important to note that using the 'Lock Mode' feature should only be done when necessary, as it can impact fuel efficiency. In most everyday driving situations, it's recommended to leave it off.