Chevrolet 2008 Corvette Owner's Manual page 337

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 will not have to be replaced. If you drive on
a deflated run-flat tire for 25 miles (40 km) or less
and at speeds of 55 mph (90 km/h) or less, there is a
good chance that the tire can be repaired. The tire can
operate effectively with no air pressure for up to
100 miles (160 km) at speeds up to 55 mph (90 km/h),
but the tire would then have to be replaced. When
a tire is filled with air, it provides a cushion between the
road and the wheel. Because you will not have this
cushion when driving on a deflated tire, try to avoid
potholes that could damage your wheel and require
replacement of it.
Some road hazards can damage a tire beyond repair.
This damage could occur even before you have
driven on the tire in a deflated condition. When a tire
has been damaged, or if you have driven any distance
on a run-flat tire, check with an authorized run-flat
tire service center to determine whether the tire can be
repaired or should be replaced. To maintain your
vehicle's run-flat feature, all replacement tires must be
self-supporting tires. As soon as possible, contact
the nearest authorized GM or run-flat servicing
facility for inspection and repair or replacement.
To locate the nearest GM or run-flat servicing facility,
call Roadside Assistance. For phone numbers and
Roadside Service details see Roadside Assistance
Program on page 7-8.
CAUTION:
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Run-flat tires are constructed differently than
other tires and could explode during improper
service. You or others could be injured or
killed if you attempt to repair, replace,
dismount, or mount a run-flat tire. Let only an
authorized run-flat service center repair,
replace, dismount, and mount run-flat tires.
The valve stems on your run-flat tires have sensors that
are part of the Tire Pressure Monitor System (TPMS).
See Tire Pressure Monitor System on page 5-68. These
sensors contain batteries which are designed to last
for 10 years under normal driving conditions. See your
dealer/retailer if you ever need to have a wheel
replaced, or if the sensors ever need replacement.
5-65