Porsche Cayenne 2005 Owner's Manual page 85

Tire Pressure
The tire pressure monitoring system continuously
monitors tire pressure and tire temperature on all
four wheels and warns the driver when the tire
pressure is too low.
The display as well as the settings for tire
pressure monitoring are done on the multi-
purpose display in the TYRE PRESSURE menu.
However the tire pressure must be set manually
on the wheel.
The tire pressures to be monitored for tire type
are permanently set in the tire pressure
monitoring system and cannot be changed.
The driver is solely responsible for filling the tires
correctly and for selecting in the multi-purpose dis-
play.
Danger!
Risk of serious personal injury or death.
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Driving the vehicle with low tire pressure in-
creases increases risk of a tire failure and re-
sulting loss of control. Furthermore, low tire
pressure increases rate of wear of the affect-
ed tires.
f When a flat tire has been displayed, immediate-
ly stop in a suitable place and check the tires
for damage. If necessary remedy the damages
with a tire sealant.
f Do not by any means continue to drive with
leaking tires.
f Defective tires must be immediately replaced
by a specialist workshop.
Tyre repairs are not permissible under
any circumstances.
f Sealing the tyre with the tyre sealant is only an
emergency repair, so you can drive to the next
workshop. The maximum permitted speed is
50 mph (80 km/h).
f Do not drive with tires whose tyre pressure
drops again in a short period of time. In cases
of doubt, have tires checked by a specialist
workshop.
f If the tire pressure monitoring system is defec-
tive (e.g., defective wheel transmitter), contact
a specialist workshop immediately and have
the damages repaired.
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The tire pressure will not be monitored by a
defective tire pressure monitoring system.
f Use only the pressure differences shown in the
TYRE PRESSURE menu or from tyre pressure
messages or warnings when correcting the
tyre pressure.
f Tires lose air over time without a tire defect be-
ing present. A tire pressure warning will then
appear in the multi-purpose display
Correct the tire pressure.
f The tire pressure monitoring system gives a
warning about tyre damages due to insufficient
tyre pressure as well as about a gradual loss
of pressure due to foreign objects.
The tyre pressure monitoring system cannot
warn you about tyre damages occurring sud-
denly (e.g., flat tyre due to sudden external ef-
fects).
f If a message is displayed, check the tire
pressure at the next opportunity.
f Before fitting tires approved by Porsche which
are not stored in the on-board computer, the
missing information should be supplemented
in the on-board computer.
Controls, Safety, Instruments
85