H= Normal drive, normal speed, 4/2 transmission
N= Neutral
HL=4/4 Low Power, half speed, for mild steep
LL=4/4 High Power, quarter speed, for hard steep
Please don't shift short-4/4-gear while vehicle is in move. First stop it to stand-still condition, put the main-auto-gear in Parking or Neutral mode and then shift the short-4/4-gear to desired position.
There is no lock or unlock, Prado-96 is all time 4-wheels engaged