Chevrolet 2004 Silverado 1500 Pickup Owner's Manual page 128

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.
2-36
Shifting In or Out of 4LO
Notice: Shifting the transfer case into 4LO while
moving at speeds faster than 3 mph (5 km/h)
may cause premature wear to the transfer case, and
may cause the gears to grind. To avoid causing
premature wear, and grinding the gears, do not shift
the transfer case into 4LO while the vehicle is
moving faster than 3 mph (5 km/h).
Shifts into 4LO can be made with the vehicle at a stop,
or while slowly rolling about 1 to 3 mph (2 to 5 km/h).
•
Shift the automatic transmission into NEUTRAL (N),
or with a manual transmission, press the clutch
pedal, or shift into NEUTRAL (N).
•
Shift the transfer case shift lever in one continuous
motion into the 4LO position.
•
When in 4LO do not drive faster than 45 mph. This
will reduce wear and extend the life of your transfer
case.
Shifting In or Out of NEUTRAL
1. With the vehicle running and the engine at an idle
set the parking brake.
2. Place the transmission into NEUTRAL (N).
Shift the transfer case in one continuous motion into or
out of the NEUTRAL (N) position.