Fiat 500L 2019 Owner's Manual page 126

124 SAFETY
Check TPMS Warnings
The TPMS Warning Light will flash on and off for 75 seconds
and remain on solid when a system fault is detected, an
audible chime will be activated and the "Service Tire Pressure
Monitoring System" text message will display. If the ignition is
cycled, this sequence will repeat providing the system fault
still exists. The TPMS Warning Light will turn off when the
fault condition no longer exists. A system fault can occur with
any of the following scenarios:
• Jamming due to electronic devices or driving next to
facilities emitting the same radio frequencies as the TPM
sensors.
• Installing some form of aftermarket window tinting that
affects radio wave signals.
• Snow or ice around the wheels or wheel housings.
• Using tire chains on the vehicle.
• Using wheels/tires not equipped with TPM sensors.
NOTE: Your vehicle may be equipped with a compact
spare wheel and tire assembly.
• The compact spare tire does not have a tire pressure
monitoring sensor. Therefore, the TPMS will not monitor
the tire pressure in the compact spare tire.
• If you install the compact spare tire in place of a road tire
that has a pressure below the low-pressure warning
limit, upon the next ignition cycle, a chime will sound
and the TPMS Warning Light will still turn ON due to
the low tire.
• However, after driving the vehicle for up to 20 minutes
above 15 mph (24 km/h), the TPMS Warning Light will
flash on and off for 75 seconds and then remain on solid.
• This occurs for each subsequent ignition cycle, a chime
will sound and the TPMS Warning Light will flash on
and off for 75 seconds and then remain on solid.
• Once you repair or replace the original road tire and
reinstall it on the vehicle in place of the compact spare
tire, the TPMS will update automatically and the TPMS
Warning Light will turn OFF, as long as no tire pressure
is below the low-pressure warning limit in any of the
four active road tires. 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.