Porsche Cayenne Owner's Manual page 156

Warning!
Risk of accident, resulting in serious
personal injury or death. The spare wheel
and collapsible spare wheel are not equipped
with wheel transmitters and are not
monitored by Tire Pressure Monitoring.
f The spare wheel and collapsible spare wheel
must be used only over short distances.
Warning!
Risk of accident resulting in serious personal
injury or death if a collapsible spare wheel or
tire sealant is in use.
f Avoid hard acceleration and high cornering
speeds.
f Do not exceed maximum speed of 50 mph
(80 km/h).
f Please observe the safety and operating
instructions on the tire compressor.
f Have the tire or wheel replaced by an
authorized Porsche dealer as soon as
possible.
156
Multi-Purpose Display and Instruments
Note
If a collapsible spare wheel or tire sealant is used,
a warning reminder appears on the multi-purpose
display if the speed limit of 50 mph (80 km/h) is
exceeded.
Note on operation
If you do not confirm a selection or confirm a
selection without carrying out the task described
for this selection, this will affect correct indication
of warnings and messages.
Depending on the selection made, a corre-
sponding message will appear when the ignition is
switched on, when driving off or while driving.
For further information on warning messages on
the multi-purpose display:
Please observe the chapter "OVERVIEW OF
WARNING MESSAGES" on Page 168.
"Tyre pressure too low" message
This message indicates pressure loss of at least
4 psi (0.3 bar).
The message indicates the wheel in which the
pressure loss has been detected. The deviation
from the required pressure is displayed for the
corresponding wheel.
The message appears only when the vehicle is
stationary. It appears for the first time when the
ignition is switched off and then each time the
ignition is switched on until the tire pressure has
been corrected to the required value.
The message is shown for 10 seconds on the
multi-purpose display. It can be suppressed
immediately by pressing the ENTER button.
f Check the tire pressure at the next opportunity
and fill the tires.
Example: If the tire pressure display shows
"–4 psi (–0.3 bar)", you must increase the tire
pressure by 4 psi (0.3 bar).