GMC 2012 Sierra - Manual (Page 451)

Black plate (65,1) GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Vehicle Care 10-65
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.
. 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 10‑68 and Wheel
Replacement on page 10‑72.
If your vehicle has dual rear
wheels, also see Dual Tire
Rotation on page 10‑67.
Use this rotation pattern when
rotating the tires if the vehicle
has single rear wheels.