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Instrument Panel and Multi-Purpose Display
119
Tire Pressure Monitoring (TPM)
Each tire, including the spare, should be checked
monthly when cold and inflated to the inflation
pressure recommended by Porsche on the tire
inflation pressure label.
For information on the tire inflation pressure label:
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Please see the chapter “TIRES AND WHEELS”
on page 265.
As an added safety feature, your vehicle has been
equipped with a tire pressure monitoring system
(TPM) that illuminates a low tire pressure telltale
(warning light) when one or more of your tires is
significantly under-inflated.
Accordingly, when the low tire pressure telltale
illuminates, you should stop and check your tires
as soon as possible, and inflate them to the
proper pressure. Driving on a significantly under-
inflated tire causes the tire to overheat and can
lead to tire failure. Under-inflation also reduces
fuel efficiency and tire tread life, and may affect
the vehicle’s handling and stopping ability.
The display as well as the settings for the Tire
Pressure Monitoring take place on the on-board
computer.
However, the tire pressure must still be set
manually on the wheel.
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Please see the chapter “TIRE PRESSURE FOR
COLD TIRES 68 °F (20 °C)” on page 310.
Driving the vehicle with low tire pressure increases
the risk of a tire failure and resulting loss of
control. Furthermore, low tire pressure increases
rate of wear of the affected tires.
Please note that the Tire Pressure Monitoring is
not a substitute for proper tire maintenance, and
it is the driver's responsibility to maintain correct
tire pressure, even if under-inflation has not
reached the level to trigger illumination of Tire
Pressure Monitoring low tire pressure telltale. Low
tire pressure reduces the road safety of the
vehicle and destroys the tire and wheel.
Tire Pressure Monitoring gives a warning about
tire damage caused by a natural loss in pressure
as well as about a gradual loss of pressure
caused by foreign objects.
Tire Pressure Monitoring cannot warn you about
tire damage that occurs suddenly (e.g. flat tire due
to abrupt external effects).
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When a red tire pressure warning appears,
stop immediately in a suitable place and check
the tires for damage. If necessary, remedy the
damage with a tire sealant.
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Do not by any means continue to drive with
defective tires.
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Sealing the tire with tire sealant is only an
emergency repair so you can drive to the
nearest specialist workshop.
The maximum permitted speed is
50 mph
(80 km/h)
.
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Do not drive with tires in which the tire
pressure drops again very quickly. In case of
doubt, have tires checked by a specialist
workshop.
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Defective tires must be replaced immediately
at an authorized Porsche dealer.
Tires must never be repaired under any
circumstances.
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If Tire Pressure Monitoring is defective
(e.g. defective wheel transmitter), contact an
authorized Porsche dealer immediately and
have the damage repaired.
The tire pressure will not be monitored at all
or will be monitored only partially when Tire
Pressure Monitoring is defective.
For information on warning messages on the multi-
purpose display:
f
Please see the chapter “OVERVIEW OF
WARNING MESSAGES” on page 139.
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Incomplete entries or selection of the wrong
tires on the multi-purpose display affect the
accuracy of warnings and messages.
The settings in the tire pressure menu must be
updated following a wheel change or changes
in vehicle loading.
f
Use only the pressure differences shown in the
“
Fill info
” display in the
Tire pressure
menu
or from the corresponding tire pressure
warning when correcting the tire pressure.
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Tires can lose air over time without a tire
defect being present. A tire pressure warning
will then appear on the multi-purpose display.
Check the tire pressure at the next opportunity.
Maintaining Tire
Pressure
WARNING
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