Tire Inspection; Tire Rotation - GMC 2012 Sierra Series Owner's Manual

10-68 Vehicle Care
7. Proceed to the passenger side
rear tire, and repeat the
procedure in Step 5.
8. Proceed to the driver side rear
tire, and repeat the procedure in
Step 5. The horn sounds
two times to indicate the sensor
identification code has been
matched to the driver side rear
tire, and the TPMS sensor
matching process is no longer
active. The TIRE LEARNING
ACTIVE message on the DIC
display screen goes off.
9. Turn the ignition switch to
LOCK/OFF.
10. Set all four tires to the
recommended air pressure
level as indicated on the Tire
and Loading Information label.

Tire Inspection

We recommend that the tires,
including the spare tire, if the
vehicle has one, be inspected
for signs of wear or damage at
least once a month.
Replace the tire if:
The indicators at three or
more places around the tire
can be seen.
There is cord or fabric
showing through the tire's
rubber.
The tread or sidewall is
cracked, cut, or snagged
deep enough to show cord or
fabric.
The tire has a bump, bulge,
or split.
I n f o r ma t i o n P r o v i d e d b y :
The tire has a puncture, cut,
or other damage that cannot
be repaired well because of
the size or location of the
damage.

Tire Rotation

Tires should be rotated every
12 000 km (7,500 mi). See
Maintenance Schedule on
page 11 3.
Tires are rotated to achieve a
uniform wear for all tires. The
first rotation is the most
important.
Any time unusual wear is
noticed, rotate the tires as soon
as possible and check the wheel
alignment. Also check for
damaged tires or wheels. See
When It Is Time for New Tires
on page 10 71 and Wheel
Replacement on page 10 76.