GMC 2003 Yukon Owner's Manual page 339

Four-Wheel-Drive Vehicles
If your vehicle is equipped with Stabilitrak
designed to be dolly towed. If you need to tow your
vehicle, see "Dinghy Towing" earlier in this section.
Use the following procedure to tow your vehicle:
1. Firmly set the parking brake.
2. Shift the transmission to PARK (P).
3. Securely attach the vehicle being towed to the tow
vehicle.
4. Shift the transfer case to NEUTRAL. See
Four-Wheel Drive on page 2-26 for the proper
procedure to select the NEUTRAL position for your
vehicle.
5. Release the parking brake only after the vehicle
being towed is firmly attached to the following
vehicle.
6. Turn the ignition to LOCK.
{
Shifting a four-wheel-drive vehicle's transfer
case into NEUTRAL can cause your vehicle to
roll even if the transmission is in Park (P). You
or others could be injured. Make sure the
®
it is not
parking brake is firmly set before you shift the
transfer case to NEUTRAL.
CAUTION:
4-57