GMC 2008 Acadia - Manual (Page 398)

Storing a Flat or Spare Tire and
Tools
Storing the Spare Tire
{ CAUTION:
The underbody-mounted spare tire needs to be
stored with the valve stem pointing down. If
the spare tire is stored with the valve stem
pointing upwards, its secondary latch will not
work properly and the spare tire could loosen
and suddenly fall from your vehicle. If this
happened when your vehicle was being driven,
the tire might contact a person or another
vehicle, causing injury and, of course, damage
to itself as well. Be sure the
underbody-mounted spare tire is stored with
its valve stem pointing down.
{ CAUTION:
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 spare tire:
1. Lay the compact spare tire near the rear of the
vehicle with the valve stem down.
2. Reinstall the plastic spare tire heat shield on the
compact spare tire.
3. Slide the cable retainer through the center of the
wheel and start to raise the compact spare tire.
Make sure the retainer is fully seated across
the underside of the wheel.
4. When the compact spare tire is almost in the stored
position, turn the tire so the valve is toward the rear
of the vehicle.
This position helps when checking the air pressure
in the compact spare tire.
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