Maserati Ghibli Owner's Manual page 213

Should this occur, you should stop as
soon as possible and inflate the tire/s
with the low pressure (the one/s
flashing in the instrument panel
graphic) to the recommended cold
pressure inflation value indicated on
the label. Once the system receives the
updated tire pressure value, the
system will automatically update, the
graphic display in the instrument
panel will stop flashing, and the TPMS
light will turn off. The vehicle may
need to be driven for up to 20 minutes
above 24 km/h (15 mph) in order for
the TPMS to acquire and process the
updated information.
"Service Tire Pressure System"
Warning
If a system fault is detected, the TPMS
light will flash for 75 seconds and
then remain lit followed by a beeping
sound. Therewith, the instrument
cluster will display a "Service Tire
Pressure System" message for a
minimum of five seconds and then
display dashes (--) in place of the
pressure value to indicate which
sensor is ineffective.
If the ignition switch is cycled, the
sequence will repeat, in case the
system fault still persists. If the system
fault no longer exists, the TPMS light
will no longer flash, and the
"Service Tire Pressure System"
message will no longer display, and a
pressure value will display in place of
the dashes.
A system fault can occur due to any of
the following:
• Signal interference due to electronic
devices or driving next to facilities
emitting the same radio frequencies
as the TPMS sensors.
• Installing aftermarket window
tinting that contains materials that
may block radio wave signals.
• Accumulation of snow or ice around
the wheels or wheel housings.
• Using tire chains on the vehicle.
• Using wheels/tires not endowed with
TPMS sensors.
The instrument cluster will also display
a "Service Tire Pressure System"
message for a minimum of five
seconds when a system fault related to
an incorrect sensor location fault is
detected. In this case, the "Service Tire
Pressure System" message is then
followed with a graphic display with
pressure values still shown. This
indicates that the pressure values are
still being received from the TPMS
sensors but they may not be located in
the correct vehicle position. The
system still needs to be serviced as
long as the "Service Tire Pressure
System" message is displayed.
Driving
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