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Tire Pressure Monitoring System System (TPMS)
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:
As an added safety feature, your vehicle has been equipped with a Tire Pressure Monitoring System system (TPMS) 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 System take place on the on-board computer.
However, the tire pressure must still be set manually on the wheel.
Maintaining Tire Pressure
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 System 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 System low tire pressure telltale. Low tire pressure reduces the road safety of the vehicle and destroys the tire and wheel.
Tire Pressure Monitoring System 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 System cannot warn you about tire damage that occurs suddenly (e.g. flat tire due to abrupt external effects).
For information on warning messages on the multi-function display: