Auxiliary Driving Systems; Tire Pressure Monitoring System (Tpms) - Fiat 500 ABARTH CABRIO 2018 User Manual

AUXILIARY DRIVING SYSTEMS

Tire Pressure Monitoring System (TPMS)

The Tire Pressure Monitor System (TPMS) will
warn the driver of a low tire pressure based on
the vehicle recommended cold tire pressure.
The tire pressure will vary with temperature by
about 1 psi (7 kPa) for every 12°F (6.5°C). This
means that when the outside temperature de-
creases, the tire pressure will decrease. Tire
pressure should always be set based on cold
inflation tire pressure. This is defined as the tire
pressure after the vehicle has not been driven for
at least three hours, or driven less than 1 mile
(1.6 km) after a three hour period.The cold tire
inflation pressure must not exceed the maximum
inflation pressure molded into the tire sidewall.
Refer to "Tires – General Information" in "Servic-
ing And Maintenace" for information on how to
properly inflate the vehicle' s tires. The tire pres-
sure will also increase as the vehicle is driven, this
is normal and there should be no adjustment for
this increased pressure.
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The TPMS will warn the driver of a low tire
pressure if the tire pressure falls below the low
pressure warning limit for any reason, including
low temperature effects, or natural pressure loss
through the tire.
The TPMS will continue to warn the driver of low
tire pressure as long as the condition exists, and
will not turn off until the tire pressure is at or
above the recommended cold tire pressure on
the placard. Once the low tire pressure warning
(Tire Pressure Monitoring System Warning Light)
illuminates, you must increase the tire pressure to
the recommended cold tire pressure in order for
the Tire Pressure Monitoring System Warning
Light to turn off. The system will automatically
update and the Tire Pressure Monitoring System
Warning Light will turn off once the system
receives the updated tire pressures. The vehicle
may need to be driven for up to 20 minutes
above 15 mph (24 km/h) in order for the TPMS
to receive this information.
For example, your vehicle may have a recom-
mended cold (parked for more than three hours)
tire pressure of 30 psi (207 kPa). If the ambient
temperature is 68°F (20°C) and the measured
tire pressure is 27 psi (186 kPa), a temperature
drop to 20°F (-7°C) will decrease the tire
pressure to approximately 23 psi (159 kPa). This
tire pressure is sufficiently low enough to turn on
the Tire Pressure Monitoring System Warning
Light. Driving the vehicle may cause the tire
pressure to rise to approximately 27 psi
(186 kPa), but the Tire Pressure Monitoring
System Warning Light will still be on. In this
situation, the Tire Pressure Monitoring System
Warning Light will turn off only after the tires are
inflated to the vehicle' s recommended cold tire
pressure value.
CAUTION!
• The TPMS has been optimized for the
original equipment tires and wheels. TPMS
pressures and warnings have been estab-
lished for the tire size equipped on your
vehicle. Undesirable system operation or
sensor damage may result when using re-
placement equipment that is not of the
same size, type, and/or style. Aftermarket
wheels can cause sensor damage. Using
aftermarket tire sealants may cause the Tire
Pressure Monitoring System (TPMS) sensor
to become inoperable. After using an after-