GMC Terrain 2017 Owner's Manual page 246

Once the destination is reached:
1. Set the parking brake.
2. Shift the transmission to
P (Park).
3. Turn the ignition key to
LOCK/OFF.
4. Install fuse 32, the Discrete
Logic Ignition Switch fuse. See
Instrument Panel Fuse
Block 0 218.
5. Start the engine and let it idle
for more than three minutes
before driving the vehicle.
Caution
Do not tow a vehicle with the front
drive wheels on the ground if one
of the front tires is a compact
spare tire. Towing with two
different tire sizes on the front of
the vehicle can cause severe
damage to the transmission.
Caution
Use of a shield mounted in front
of the vehicle grille could restrict
airflow and cause damage to the
transmission. The repairs would
not be covered by the vehicle
warranty. If using a shield, only
use one that attaches to the
towing vehicle.
Dolly Towing (All-Wheel-Drive
Vehicles)
All-wheel-drive vehicles should not
be towed with two wheels on the
ground. To properly tow these
vehicles, they should be placed on
a platform trailer with all four wheels
off of the ground or dinghy towed
from the front.
Vehicle Care
Dolly Towing
(Front-Wheel-Drive Vehicles)
To tow the vehicle from the front
with the rear wheels on the ground:
1. Put the front wheels on a dolly.
2. Move the shift lever to
P (Park).
3. Set the parking brake.
4. Secure the vehicle to the dolly.
5. Follow the dolly manufacturer's
instructions for preparing the
vehicle and dolly for towing.
6. Release the parking brake.
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