Vehicle Care 10-53
The Tyre and Loading
Information label indicates the
original equipment tyres on the
vehicle. See Vehicle Load Limits
on page 9-14, for the label
location and more information
about the Tyre and Loading
Information label.
Different Size Tyres and
Wheels
If wheels or tyres are installed that
are a different size than the original
equipment wheels and tyres, vehicle
performance, including its braking,
ride and handling characteristics,
stability, and resistance to rollover
may be affected. If the vehicle has
electronic systems such as antilock
brakes, rollover airbags, traction
control, electronic stability control,
or All-Wheel Drive, the performance
of these systems can also be
affected.
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Warning
If different sized wheels are used,
there may not be an acceptable
level of performance and safety if
tyres not recommended for those
wheels are selected. This
increases the chance of a crash
and serious injury. Only use GM
specific wheel and tyre systems
developed for the vehicle, and
have them properly installed by a
GM certified technician.
See Buying New Tyres on
page 10-51 and Accessories and
Modifications on page 10-2.
Wheel Alignment and
Tyre Balance
The tyres and wheels were aligned
and balanced at the factory to
provide the longest tyre life and best
overall performance. Adjustments to
wheel alignment and tyre balancing
are not necessary on a regular
basis. Consider an alignment check
if there is unusual tyre wear or the
vehicle is significantly pulling to one
side or the other. Some slight pull to
the left or right, depending on the
crown of the road and/or other road
surface variations such as troughs
or ruts, is normal. If the vehicle is
vibrating when driving on a smooth
road, the tyres and wheels may
need to be rebalanced. See your
dealer for proper diagnosis.
Wheel Replacement
Replace any wheel that is bent,
cracked, or badly rusted or
corroded. If wheel nuts keep coming
loose, the wheel, wheel bolts, and
wheel nuts should be replaced.
If the wheel leaks air, replace it.
Some aluminium wheels can be
repaired. See your dealer if any of
these conditions exist.
Your dealer will know the kind of
wheel that is needed.
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