GMC 2018 Terrain Owner's Manual page 273

272 Vehicle Care
Caution
Wheel covers will not fit on the
vehicle's compact spare. If you try
to put a wheel cover on the
compact spare, the cover or the
spare could be damaged.
Storing a Flat or Spare Tire
and Tools
Warning
Storing a jack, a tire, or other
equipment in the passenger
compartment of the vehicle could
cause injury. In a sudden stop or
collision, loose equipment could
strike someone. Store all these in
the proper place.
To store the flat tire:
1. Return the jack and tools to
their original storage location.
2. Replace the spare tire cover.
3. Replace the load floor.
4. Place the flat tire, lying flat, in
the rear storage compartment.
5. Route the loop end of the strap
through one of the cargo
tie-downs in the rear of the
vehicle.
Then route the hook through
the loop and pull the strap to
tighten it around the cargo
tie-down.
6. Route the hook end of the
strap through the wheel.
7. Attach one end of the strap to
a cargo tie-down in the rear of
the vehicle.
8. Route the strap through the
wheel, as shown.
9. Attach the other end of the
strap to the other cargo
tie-down in the rear of the
vehicle.
10. Tighten the strap
The compact spare is for temporary
use only. Replace the compact
spare tire with a full-size tire as
soon as possible.