Maserati QUATTROPORTE Owner's Manual page 223

acquire and process the updated
setting.
For example: Your vehicle (stationary
for more than three hours) may have a
recommended cold inflation pressure
of 30 PSI (2.1 bar). If the ambient
temperature is 68°F (20°C) and the
measured tire pressure is 27 PSI (1.8
bar), a temperature drop to 12°F (7°C)
will decrease the tire pressure to
approximately 23 PSI (1.6 bar). This
tire pressure is sufficiently low to turn
ON the TPMS Light . Driving the
vehicle may cause the tire pressure to
rise to approximately 27 PSI (1.8 bar),
but the TPMS light will stay lit. In
this situation, the TPMS light
turn OFF only after the tires are
inflated to the vehicle's recommended
cold inflation pressure value.
WARNING!
The TPMS warns the driver that the
tire pressure has decreased. This
warning does not exempt the driver
will
from periodically checking the tires
and from complying with the
prescribed tire pressure levels.
CAUTION!
• The TPMS has been optimized for
the original equipment tires and
wheels. TPMS pressures and warning
have been established for the tire
size equipped on your vehicle.
Undesirable system operation or
sensor damage may occur when
using replacement equipment that is
not of the same size, type, and/or
style. Aftermarket wheels can cause
sensor damage. Do not use
aftermarket tire sealants or balance
beads if your vehicle is equipped
with a TPMS, as damage to the
sensors may result.
• The system can temporarily
experience radio-electric
interference emitted by devices
using similar frequencies.
• After inspecting or adjusting the tire
pressure, always reinstall the valve
stem cap. This will prevent moisture
and dirt from entering the valve
stem and damage the TPMS internal
sensor.
NOTE:
• Driving on a significantly
underinflated tire causes the tire to
overheat and may lead to tire
failure. Under-inflation also reduces
fuel efficiency and tire tread life, and
may affect the vehicle's handling and
stopping ability.
• The TPMS is not a substitute for
proper tire maintenance, and it is
the driver's responsibility to maintain
correct tire pressure using an
accurate tire pressure gage, even if
under-inflation has not reached the
(Continued)
Driving
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