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Tire Pressure Monitoring (TPM)<br />
Each tire should be checked monthly when cold<br />
and inflated to the inflation pressure<br />
recommended by Porsche on the tire inflation<br />
pressure label.<br />
For information on the tire inflation pressure label:<br />
f Please see the chapter “TIRES AND WHEELS”<br />
on page 280.<br />
As an added safety feature, your vehicle has been<br />
equipped with a tire pressure monitoring system<br />
(TPM) that illuminates a low tire pressure telltale<br />
(warning light) when one or more of your tires is<br />
significantly under-inflated.<br />
Accordingly, when the low tire pressure telltale<br />
illuminates, you should stop and check your tires<br />
as soon as possible, and inflate them to the<br />
proper pressure. Driving on a significantly underinflated<br />
tire causes the tire to overheat and can<br />
lead to tire failure. Under-inflation also reduces<br />
fuel efficiency and tire tread life, and may affect<br />
the vehicle’s handling and stopping ability.<br />
However, the tire pressure must still be set<br />
manually on the wheel.<br />
f Please see the chapter “TIRE PRESSURE FOR<br />
COLD TIRES (68 °F/20 °C)” on page 326.<br />
Danger!<br />
Risk of serious personal injury or death.<br />
Driving the vehicle with low tire pressure<br />
increases the risk of a tire failure and<br />
resulting loss of control. Furthermore, low<br />
tire pressure increases rate of wear of the<br />
affected tires.<br />
Please note that the Tire Pressure Monitoring<br />
is not a substitute for proper tire<br />
maintenance, and it is the driver's<br />
responsibility to maintain correct tire<br />
pressure, even if under-inflation has not<br />
reached the level to trigger illumination of<br />
Tire Pressure Monitoring low tire pressure<br />
telltale. Low tire pressure reduces the road<br />
safety of the vehicle and destroys the tire and<br />
wheel.<br />
Tire Pressure Monitoring gives a warning<br />
about tire damage caused by a natural loss<br />
in pressure as well as about a gradual loss of<br />
pressure caused by foreign objects.<br />
Tire Pressure Monitoring cannot warn you<br />
about tire damage that occurs suddenly (e.g.<br />
flat tire due to abrupt external effects).<br />
f When a red tire pressure warning appears,<br />
stop immediately in a suitable place and check<br />
the tires for damage. If necessary, remedy the<br />
damage with a tire sealant.<br />
f Do not by any means continue to drive with<br />
defective tires.<br />
f Sealing the tire with tire sealant is only an<br />
emergency repair so you can drive to the<br />
nearest specialist workshop.<br />
The permitted top speed is 50 mph<br />
(80 km/h).<br />
f Do not drive with tires in which the tire<br />
pressure drops again very quickly. In case of<br />
doubt, have tires checked by a specialist<br />
workshop.<br />
f Defective tires must be replaced immediately<br />
at an authorized Porsche dealer.<br />
Tires must never be repaired under any<br />
circumstances.<br />
f If Tire Pressure Monitoring is defective<br />
(e.g. defective wheel transmitter), contact an<br />
authorized Porsche dealer immediately and<br />
have the damage repaired.<br />
The tire pressure will not be monitored at all<br />
or will be monitored only partially when Tire<br />
Pressure Monitoring is defective.<br />
For information on warning messages on the multifunction<br />
display:<br />
f Please see the chapter “OVERVIEW OF<br />
WARNING MESSAGES” on page 152.<br />
f Incomplete entries or selection of the wrong<br />
tires on the multi-function display affect the<br />
accuracy of warnings and messages.<br />
The settings in the tire pressure menu must be<br />
updated following a wheel change or changes<br />
in vehicle loading.<br />
Instrument Panel and Multi-Function Display 127
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