Chevrolet Silverado 2004, Owner'S Manual

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You can shift from 2-Wheel High (2HI) to 4-Wheel High
(4HI) or from 4-Wheel High (4HI) to 2-Wheel High
(2HI) while the vehicle is moving. Your front axle will
engage faster if you take your foot off of the accelerator
for a couple of seconds after you shift. In extremely
cold weather, it may be necessary to stop or slow the
vehicle to shift into 4-Wheel High (4HI).
When Using the Manual Transfer Case
•
All shifts should be made using quick motions.
Slow shifts may make it harder to shift.
•
You may notice that it is harder to shift when the
vehicle is cold. When the vehicle warms up the
shifting will return to normal.
•
While in 4-Wheel (4HI) or 4-Wheel Lo (4LO) you
may experience reduced fuel economy.
•
Avoid driving in 4-Wheel Drive on clean, dry
pavement. It may cause your tires to wear faster,
and make your transfer case harder to shift and
run noisier.
Shifting from 2HI to 4HI
•
Shifts between 2HI and 4HI can be made at any
vehicle speed.
•
It is easiest to shift the transfer case when
maintaining a constant speed or a slight
acceleration. If possible, avoid shifting while slowing
down, as it will may make it harder to shift.
•
Shift your transfer case lever in one continuous
motion into either the 4HI or 2HI position.
•
In extremely cold weather, it may be necessary to
slow or stop the vehicle to shift into 4HI until your
vehicle has warmed up.
•
While in 4HI, your vehicle can be driven at any
posted legal speed limit.
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