2009 Chevrolet Silverado 2500 HD Extended Cab Owner's Manual - Page 148

2009 Chevrolet Silverado 2500 HD Extended Cab Manual

Page 148 highlights

You must wait for the Four-Wheel-Drive Low indicator light to stop flashing and remain on before shifting the 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 the vehicle, always wait for the mode indicator lights to stop flashing before shifting the transmission into gear. It is typical for the vehicle to exhibit significant engagement noise and bump when shifting between Four-Wheel-Drive Low and Four-Wheel-Drive High ranges or from N (Neutral) with the engine running. If the knob is turned to the Four-Wheel-Drive Low position when the vehicle is in gear and/or moving, the Four-Wheel-Drive Low indicator light will flash for 30 seconds and not complete the shift unless the vehicle is moving less than 3 mph (5 km/h) and the transmission is in N (Neutral). After 30 seconds the transfer case will shift to Four-Wheel-Drive High mode. in ON/RUN. The preferred method for shifting out of Four-Wheel-Drive Low is to have the 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 the 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 the vehicle, always wait for the mode indicator lights to stop flashing before shifting the transmission into gear. It is typical for the vehicle to exhibit significant engagement noise and bump when shifting between Four-Wheel-Drive Low and Four-Wheel-Drive High ranges or from N (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 the 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 the vehicle is moving less than 3 mph (5 km/h) and the transmission is in N (Neutral). 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, the vehicle must be stopped or moving less than 3 mph (5 km/h) with the transmission in N (Neutral) and the ignition 2-48

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You must wait for the Four-Wheel-Drive Low indicator
light to stop flashing and remain on before shifting
the 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 the vehicle, always wait for the
mode indicator lights to stop flashing before
shifting the transmission into gear.
It is typical for the vehicle to exhibit significant
engagement noise and bump when shifting between
Four-Wheel-Drive Low and Four-Wheel-Drive High
ranges or from N (Neutral) with the engine running.
If the knob is turned to the Four-Wheel-Drive Low
position when the vehicle is in gear and/or moving, the
Four-Wheel-Drive Low indicator light will flash for
30 seconds and not complete the shift unless the vehicle
is moving less than 3 mph (5 km/h) and the transmission
is in N (Neutral). After 30 seconds the transfer case
will shift to Four-Wheel-Drive High mode.
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, the vehicle
must be stopped or moving less than 3 mph (5 km/h)
with the transmission in N (Neutral) and the ignition
in ON/RUN. The preferred method for shifting out of
Four-Wheel-Drive Low is to have the 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 the
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 the vehicle, always wait for the
mode indicator lights to stop flashing before
shifting the transmission into gear.
It is typical for the vehicle to exhibit significant
engagement noise and bump when shifting between
Four-Wheel-Drive Low and Four-Wheel-Drive High
ranges or from N (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 the 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 the vehicle is moving less than
3 mph (5 km/h) and the transmission is in N (Neutral).
2-48