GMC 2012 Savana Owner's Manual page 313

Reset the Tire Pressure Monitor
System. See
.
Check that all wheel nuts are
properly tightened. See Wheel
Nut Torque under
.
Rust or dirt on a wheel, or on the
parts to which it is fastened, can
make wheel nuts become loose
after time. The wheel could come
off and cause an accident. When
changing a wheel, remove any
rust or dirt from places where the
wheel attaches to the vehicle. In
an emergency, a cloth or a paper
towel can be used; however, use
a scraper or wire brush later to
remove all rust or dirt.
Lightly coat the center of the
wheel hub with wheel bearing
grease after a wheel change or
tire rotation to prevent corrosion
or rust build-up. Do not get
grease on the flat wheel
mounting surface or on the
wheel nuts or bolts.
When the vehicle is new,
or whenever a wheel, wheel
bolt, or wheel nut is replaced,
check the wheel nut torque
after 160, 1 600, and 10 000 km
(100, 1,000, and 6,000 mi) of driving.
For proper wheel nut tightening
information, see Removing the Flat
Tire and Installing the Spare Tire
later in this section, under
see Wheel Nut Torque under
.
The outer tire on a dual wheel setup
generally wears faster than the
inner tire. Tires last longer and wear
more evenly if they are rotated. See
see
If the vehicle is operated with a
tire that is underinflated, the tire
can overheat. An overheated tire
can lose air suddenly or catch
fire. You or others could be
injured. Properly inflate all tires,
including the spare.
See
information on proper tire inflation.
. Also
Factors such as maintenance,
temperatures, driving speeds,
vehicle loading, and road conditions
affect the wear rate of the tires.
and
. Also
.
and
for more