GMC Yukon 2015 Owner's Manual page 385

10-84 Vehicle Care
Warning
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). You or others could
be injured. Set the parking brake
before shifting the transfer case
to N (Neutral).
To dinghy tow:
1. Position the vehicle being towed
behind the tow vehicle, facing
forward and on a level surface.
2. Securely attach the vehicle
being towed to the tow vehicle.
3. Apply the parking brake and
start the engine.
If equipped with an Electric
Parking Brake (EPB), the
parking brake cannot be applied
and the tires must be chocked.
4. Shift the transfer case to
N (Neutral). See Shifting into
N (Neutral) under Four-Wheel
Drive on page 9-37. Check that
the vehicle is in N (Neutral) by
shifting the transmission to
R (Reverse) and then to D
(Drive). There should be no
movement of the vehicle while
shifting.
5. Shift the transmission into D
(Drive). Turn the engine off.
Then shift the transmission into
P (Park).
6. Wait for at least 10 seconds,
then restart the engine.
7. Shift the transmission to D
(Drive), then turn the engine off
again.
Caution
Failure to disconnect the negative
battery cable or to have it contact
the terminals can cause damage
to the vehicle.
8. Disconnect the negative battery
cable at the battery and secure
the nut and bolt. Cover the
negative battery post with a
non-conductive material to
prevent any contact with the
negative battery terminal.
9. Shift the transmission to
P (Park).
Caution
If the steering column is locked,
vehicle damage may occur.
10. Move the steering wheel to
make sure the steering column
is unlocked.
11. With a foot on the brake pedal,
release the parking brake.
12. Keep the ignition key in the
towed vehicle in ACC/
ACCESSORY to prevent the
steering column from locking.
If equipped with Keyless
Access, keep the RKE
transmitter outside of the