Tire Chains; If A Tire Goes Flat - Chevrolet Silverado 4500HD 2022 Manual

7. Starting with the nut at 12 o clock
position and using a star or crisscross
pattern, run the wheel nuts down the
wheel studs with an impact wrench until
they are snug against the wheel. The
purpose of this step is to snug the
wheel(s) in the correct position, not to
apply the final torque. The tightening of
each nut should be stopped immediately
when the wheel is contacted, and result
in a wheel nut torque well below the
final specified torque.
8. Use a calibrated torque wrench to apply
the specified torque to each wheel nut in
the sequence specified in the wheel nut
torque sequence diagram above. See
Capacities and Specifications 0 371 for
torque values.
9. Wheels can undergo a process called
joint settling when placed in service after
a wheel installation has been performed.
This process results in a reduction in the
torque on the wheel nuts. To correct this
condition, operate the vehicle normally
for approximately 80 km (50 mi), then
use a calibrated torque wrench to
re-torque the wheel nuts to specification
using the appropriate pattern shown in
the wheel nut torque sequence diagram.
10. As part of a daily pretrip inspection, look
for loose or missing wheel nuts. Also,
look for rust streaks extending outward
from the wheel nuts. This can be an
indicator that one or more wheel nuts
are loose, even if they cannot be turned
by hand. Normal periodic maintenance
should also include checking the wheel
nut torque with a torque wrench.
Wheel Lug Nut Torque Maintenance
Tighten and maintain the wheel mounting
nuts to the proper torque. Loose nuts or
overtightened nuts can lead to premature
wear and possible failure of the wheel and/
or mounting hardware.
Used Replacement Wheels
Warning
Replacing a wheel with a used one is
dangerous. How it has been used or how
far it has been driven may be unknown.
It could fail suddenly and cause a crash.
When replacing wheels, use a new GM
original equipment wheel.
Vehicle Care

Tire Chains

Caution
To prevent property damage, never drive
with chains on the front tires of a
four-wheel drive vehicle without also
putting them on the rear tires. The lack
of rear chains could cause the rear of the
vehicle to slide and swing around.
Refer to the chain manufacturer s
recommendation for correct tire chain usage,
installation, and removal.

If a Tire Goes Flat

Warning
To prevent property damage, personal
injury, and/or death, if wheels or tires
must be changed, obtain expert tire
service help. Mounting and demounting
of tires should only be performed by
qualified personnel using necessary safety
procedures and equipment.
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