Maserati GranTurismo Owner's Manual page 56

Understanding the Vehicle
Tire Pressure System Fault
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
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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 device 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 socks on the vehicle.
• Using wheels/tires not endowed with
TPMS sensors.
The instrument cluster will also display a
"Service Tire Pressure System" message
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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 by 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.
Vehicles with Spare Tire
The spare tire does not have a TPMS
sensor. Therefore, the TPMS will not
monitor the pressure of the spare tire.
If you replace a pneumatic having
pressure below the low-pressure
warning limit, with the spare tire, on the
next ignition device cycle, the TPMS
light will illuminate followed by a
beeping sound. In addition, the graphic
in the instrument cluster will still display
a flashing pressure value corresponding
to the tire position.
After driving the vehicle for up to 20
minutes above 24 km/h (15 mph), the
TPMS light will flash for 75 seconds
and then remain lit. The instrument
cluster will then display a "Service
Tire Pressure System" message for a
minimum of five seconds and then
display dashes (--) in place of the
pressure value.
Each subsequent ignition device cycle
will be followed by a beeping sound,
the TPMS light will flash for
75 seconds and then remain lit. The
instrument cluster will then display a
"Service Tire Pressure System" message
for a minimum of five seconds and
subsequently displays dashes (--) in
place of the pressure value.
Once you repair, replace or reinstall a
tire with the spare tire, the TPMS will
update automatically. The TPMS light
will turn OFF and the graphic in the
instrument cluster will display a new
pressure value instead of dashes (--),
as long as no tire pressure is below the
low-pressure warning limit in any of the
four tires. The vehicle may need to be
driven for up to 20 minutes above 24
km/h (15 mph) in order for the TPMS