There are 2 types of hubs on the Track/Kicks
Autos (junk) and Manuals, autos say so on
the cover, manuals have a switch on them, and
they turn about 1/4 turn, look close, you will see
a dot on one side of the hub, it points to "Lock"
or "Free" to use the 4WD you turn both sides to
Lock, you can drive with them locked too on the
street, but not in 4WD unless in the snow
You will loose some MPG from the front axle
and gears drag, but if you don't plan on using
the 4WD for a while (a day or more) turn the
hubs to Free, saves Wear, Gas, CVs and U-joints
Good Luck
Wild