1996 Montero 4wd questions

My 18 yr old son bought a 96 Montero with no owners manual. The 4wd shifter has two high positions marked "4H" and "4HLc". What is the difference between them and can he drive in 4H on dry pavement like AWD?

Also there is a switch on the center console marked "A/T MODE", what does it do.

hi eric. has anyone sent you a pm on your queries?

anyway, i can't answer the 1st one since ours is 4x2, but the 2nd question's answer is this:

PWR/power - shifts late
mid position - normal shifting
HOLD/hold - shifts early, usually for low traction situations

hth, albeit belated.