Function of the LOW RANGE gear reduction
The LOW RANGE gear reduction enables very slow driving in the respective gears. If you engage LOW RANGE, the engine's performance characteristics and the automatic transmission's shifting characteristics are adjusted accordingly. The transmission ratio from the engine to the wheels is around 40% lower than in the road position. The drive torque is increased correspondingly.
Conditions for engaging/disengaging
The following shifting conditions must be met in order to engage or disengage LOW RANGE:
all-wheel drive is engaged More.
the engine is running.
the vehicle is stationary.
you depress the brake pedal.
vehicles with manual transmission: the manual transmission is in neutral.
vehicles with automatic transmission: the selector lever is in position
or 
.