GMC Sierra Denali 2014 Owner's Manual page 359

Caution (Continued)
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.
To dolly tow a two-wheel-drive
vehicle, the vehicle must be towed
with the rear wheels on the dolly.
See Rear Towing (Rear Wheels Off
the Ground) later in this section for
more information.
Front Towing (Front Wheels Off
the Ground) Four-Wheel-Drive
Vehicles
See your dealer for the procedure to
tow this vehicle.
Rear Towing (Rear Wheels Off
the Ground)
Two-Wheel-Drive Vehicles
Use the following procedure to dolly
tow a two-wheel-drive vehicle from
the rear:
1. Attach the dolly to the tow
vehicle following the dolly
manufacturer's instructions.
2. Drive the rear wheels onto the
dolly.
Vehicle Care
3. Firmly set the parking brake.
See Parking Brake on
page 9-46.
4. Put the transmission in P (Park).
5. Secure the vehicle to the dolly
following the manufacturer's
instructions.
6. Use an adequate clamping
device designed for towing to
ensure that the front wheels are
locked into the straight position.
7. Turn the ignition to LOCK/OFF.
Four-Wheel-Drive Vehicles
See your dealer for the procedure to
tow this vehicle.
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