Run-Flat Tires - Cadillac 2008 XLR Owner's Manual

Treadwear Indicators
called wear bars, that show across the tread of
a tire when only 1/16 inch (1.6 mm) of tread
remains. See When It Is Time for New Tires on
page 6-66.
UTQGS (Uniform Tire Quality Grading
Standards) A tire information system that
:
provides consumers with ratings for a tire's
traction, temperature, and treadwear. Ratings are
determined by tire manufacturers using
government testing procedures. The ratings are
molded into the sidewall of the tire. See Uniform
Tire Quality Grading on page 6-69.
Vehicle Capacity Weight
designated seating positions multiplied by
150 lbs (68 kg) plus the rated cargo load.
See Loading Your Vehicle on page 5-22.
Vehicle Maximum Load on the Tire
an individual tire due to curb weight, accessory
weight, occupant weight, and cargo weight.
Vehicle Placard A label permanently attached to
:
a vehicle showing the vehicle's capacity weight
and the original equipment tire size and
recommended inflation pressure. See "Tire and
Loading Information Label" under Loading
Your Vehicle on page 5-22.
6-58
Narrow bands, sometimes
:
The number of
:
Load on
:

Run-Flat Tires

Your vehicle, when new, had run-flat tires. There is no
spare tire, no tire changing equipment, and no place
to store a tire in the vehicle. Run-flat tires perform
so well without any air that a Tire Pressure Monitor
System (TPMS) is used to alert you if a tire has
lost pressure.
CAUTION:
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When the low tire warning light is displayed on
the instrument panel cluster, your vehicle's
handling capabilities will be reduced during
severe maneuvers. If you drive too fast, you
could lose control of your vehicle. You or others
could be injured. Do not drive over 55 mph
(90 km/h) when the low tire warning light is
displayed. Drive cautiously and check your tire
pressures as soon as you can.
If a tire goes flat, you will not need to stop on the side
of the road to change the tire. You can just keep on
driving. The shorter the distance you drive and the
slower the speed, the greater the chance that the tire