My 1998 Explorer XLT has a rotary switch on the dash that controls the 4WD function. All three settings are labeled under a 4X4 banner and are "AUTO", "HIGH" and "LOW". Normal highway driving is done in "AUTO". In "LOW" it crawls along like the VX in "4L". Although a very capable truck it doesn't compare to the traction abilities of the VX, not even close...