Alfa Romeo Giulia 2017 Owner's Manual page 78

Warning
Light
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.
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 result when using replacement 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 aftermarket tire sealant it is recommended that you take your vehicle
to an authorized dealership to have your sensor function checked.
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What It Means
Caution!
What To Do