Toyota 4runner 2009 User Manual page 176

2-4. Using other driving systems
Full-time 4WD models
178
H4 (high speed position)
Normal driving on all types
of roads.
L4 (low speed position)
Driving requiring maximum
power and traction such as
climbing or
steep hills, off-road driving,
and hard pulling in sand or
mud, etc.
The 4LO indicator will
come on.
descending