Chevrolet 2011 Express 1500 Cargo Owner's Manual page 338

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 m) of driving.
For proper wheel nut tightening
information, see Removing the Flat
Tire and Installing the Spare Tire
later in this section, under
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
If the vehicle is operated with a
. Also see
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.
and
. Also see
.
and
for more
Factors such as maintenance,
temperatures, driving speeds,
vehicle loading, and road conditions
affect the wear rate of the tires.
Treadwear indicators are one way to
tell when it is time for new tires.
Treadwear indicators appear when
the tires have only 1.6 mm (1/16 in)
or less of tread remaining.