Four-Wheel Drive System - Toyota TUNDRA Manual

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4-5. Using the driving support systems

Four-wheel drive system

Summary of functions
Use the front-wheel drive control switch to select the following transfer
modes:
1
"2WD" (high speed position, two-wheel drive)
Use this for normal driving on dry hard-surfaced roads. This position
gives greater economy, quietest ride and least wear.
2
"4H" (high speed position, four-wheel drive)
Use this for driving only on tracks that permit the tires slide, like off-road,
icy or snow-covered roads. This position provides greater traction than
two-wheel drive.
The "4HI" indicator will come on.
3
"4L" (low speed position, four-wheel drive)
Use this for maximum power and traction. Use "4L" for climbing or
descending steep hills, off-road driving, and hard pulling in sand, mud or
deep snow.
The "4LO" indicator will come on.
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: If equipped