Dolly Towing - GMC 2009 Sierra 1500 Crew Cab Owner's Manual

CAUTION:
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Shifting a four-wheel-drive vehicle's transfer case
into N (Neutral) can cause the vehicle to roll even
if the transmission is in P (Park). The driver or
others could be injured. Make sure the parking
brake is firmly set before the transfer case is
shifted to N (Neutral).
4. Shift the transfer case to N (Neutral). See "Shifting
into Neutral" under Four-Wheel Drive on page 2-37
for the proper procedure to select the Neutral
position for the vehicle.
5. Release the parking brake only after the vehicle
being towed is firmly attached to the towing
vehicle.
6. Turn the ignition to LOCK/OFF and remove the
key — the steering wheel will still turn.
After towing, see "Shifting Out of Neutral" under
Four-Wheel Drive on page 2-37 for the proper procedure
to take the vehicle out of the Neutral position.

Dolly Towing

Front Towing (Front Wheels Off the Ground)
Two-Wheel-Drive Vehicles
Notice: If a two-wheel-drive vehicle is towed with the
rear wheels on the ground, the transmission could be
damaged. The repairs would not be covered by the
vehicle warranty. Never tow the vehicle with the rear
wheels on the ground.
Two-wheel-drive vehicles should not be towed with
the rear wheels on the ground. Two-wheel-drive
transmissions have no provisions for internal lubrication
while being towed.
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