Tire Pressure Monitoring System - Maserati Quattroporte Automatic 2009 Owner's Manual

Cap2_usa.fm Page 47 Tuesday, September 2, 2008 12:20 PM
Tire pressure monitoring
system
The vehicle may be equipped with an
optional system that monitors the tire
pressure by means of special sensors
that are secured inside the wheel rims,
in position with the inflation valve.
These sensors transmit a signal that is
detected by the antennas fastened on
the car body, behind the fenders, and
connected to the ECU.
WARNING: The system can
momentarily experience radio-electric
interference emitted by devices using
similar frequencies.
The ECU processes this information
and, via the CAN line, transmits a series
of tire pressure data and system errors,
if any, to the on-board instrument
panel.
The signal transmitted by the ECU
activates some icons on the display.
The system is equipped with a specific
wiring that connects the antennas, the
control unit and the calibration button
to the vehicle's electrical system.
The system warns the driver
that there is a drop in tire
pressure. This warning does
not excuse the driver from periodically
checking the tires and from complying
with the prescribed tire pressure
levels.
WARNING: The system stores the tire
pressures as a reference rate, therefore
tires must be inflated to the prescribed
pressure.
Each tire, including the spare one (if
provided), should be checked monthly
when cold and inflated to the inflation
pressure recommended by the vehicle
manufacturer, as shown on the vehicle
A
placard or tire inflation pressure label.
(If your vehicle has tires of a different
size than the size indicated on the
vehicle placard or tire inflation
pressure label, you should determine
the proper tire inflation pressure for
those tires.)
As an added safety feature, your
vehicle has been equipped with a tire
pressure monitoring system (TPMS)
that illuminates a low tire pressure
warning light when one or more of
your tires is/are significantly under-
inflated.
Accordingly, when the low tire
pressure warning light 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
vehicle handling and stopping ability.
Please note that the TPMS is not a
substitute for proper tire maintenance,
and it is the driver's responsibility to
maintain a correct tire pressure, even if
under-inflation has not reached the
level to trigger illumination of the
TPMS low tire pressure warning light.

Tire pressure monitoring system

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