Porsche carrera gt-2004 ユーザーズマニュアル

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Controls, Instruments
The warning light in the speedometer lights up:
– When a loss in pressure has been detected. 
– If race circuit mode is set.
– If the tire pressure monitoring system is faulty.
The tire pressure warning light in the instrument 
panel goes out when the cause of the fault has 
been rectified.
No monitoring
In the event of faults the tire pressure monitoring 
cannot monitor the tire pressure. 
The warning light on the instrument panel and a 
message on the on-board computer light up. 
Monitoring is not active when:
– there are defects in the tire pressure 
monitoring system,
– wheel transmitters for tire pressure monitoring 
are not present,
– temporarily after changing a wheel,
– too many wheel transmitters are detected,
– there is external interference by other radio 
sources, e.g. wireless headphones,
– tire temperatures are too high.
f Please observe the chapter “WARNINGS IN 
THE INSTRUMENT PANEL AND IN THE ON-
BOARD COMPUTER” on Page 81.
Warning light