Alfa Romeo Giulia Quadrifoglio 2017 Owner's Manual page 73

Warning
What It Means What To Do
Light
causes the tire to overheat and can lead to tire failure.
Under-inflation also reduces fuel efficiency and tire tread life,
and may affect the vehicle's 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
correct tire pressure, even if under-inflation has not reached
the level to trigger illumination of the TPMS low tire pressure
telltale.
Your vehicle has also been equipped with a TPMS
malfunction indicator to indicate when the system is not
operating properly. The TPMS malfunction indicator is
combined with the low tire pressure telltale. When the system
detects a malfunction, the telltale will flash for approximately
one minute and then remain continuously illuminated. This
sequence will continue upon subsequent vehicle start-ups as
long as the malfunction exists. When the malfunction
indicator is illuminated, the system may not be able to detect
or signal low tire pressure as intended. TPMS malfunctions
may occur for a variety of reasons, including the installation of
replacement or alternate tires or wheels on the vehicle that
prevent the TPMS from functioning properly. Always check
the TPMS malfunction telltale after replacing one or more tires
or wheels on your vehicle, to ensure that the replacement or
alternate tires and wheels allow the TPMS to continue to
function properly.
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