Toyota 4Runner 2020, Owner'S Manual

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4-5. Using the driving support systems
4RUNNER (U)
H4F (high speed position)
Use this for normal driving on dry hard-surfaced roads. This position gives
greater economy, quietest ride and least wear.
H4L (high speed position, center differential locked)
Use this for driving only on tracks that permit the tires slide, like off-road,
icy or snow-covered roads.
L4L (low speed position, center differential locked)
Use this for maximum power and traction. Use “L4L” for climbing or
descending steep hills, off-road driving, and hard pulling in sand, mud or
deep snow.
Center differential lock indicator
Low speed four-wheel drive indicator
Four-wheel drive system (full-time 4WD
models)
Use the four-wheel drive control switch to select the following
transfer modes:
1
2
3
4
5