Chevrolet Silverado 2007 Owner's Manual page 167

Shifting Out of Four-Wheel-Drive Low
To shift from Four-Wheel-Drive Low
to Four-Wheel-Drive High, AUTO or
Two-Wheel-Drive High, your vehicle must be
stopped or moving less than 3 mph (5 km/h)
with the transmission in NEUTRAL (N) and
the ignition in RUN. The preferred method for
shifting out of Four-Wheel-Drive Low is to have
your vehicle moving 1 to 2 mph (1.6 to 3.2 km/h).
Turn the knob to the Four-Wheel-Drive High,
AUTO or Two-Wheel-Drive High position.
You must wait for the Four-Wheel-Drive High,
AUTO or Two-Wheel-Drive High indicator light
to stop flashing and remain on before shifting your
transmission into gear.
Notice: Shifting the transmission into gear
before the requested mode indicator light has
stopped flashing could damage the transfer
case. To help avoid damaging your vehicle,
always wait for the mode indicator lights
to stop flashing before shifting the
transmission into gear.
It is typical for your vehicle to exhibit
significant engagement noise and bump
when shifting between Four-Wheel-Drive
Low and Four-Wheel-Drive High ranges or
from NEUTRAL with the engine running.
If the knob is turned to the Four-Wheel-Drive High,
AUTO, or Two-Wheel-Drive High switch position
when your vehicle is in gear and/or moving, the
Four-Wheel-Drive High, AUTO or Two-Wheel-Drive
High indicator light will flash for 30 seconds but will
not complete the shift unless your vehicle is moving
less than 3 mph (5 km/h) and the transmission is in
NEUTRAL (N).
Shifting into NEUTRAL
To shift the transfer case to NEUTRAL do the
following:
1. Make sure the vehicle is parked so that it will
not roll.
2. Set the parking brake and apply the regular
brake pedal. See Parking Brake on page 169
for more information.
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