Fiat 2015 500e Owner's Manual page 267

A system fault can occur due to any of the following:
1. Signal interference due to electronic devices or driving
next to facilities emitting the same radio frequencies as
the TPM sensors.
2. Installing aftermarket window tinting that contains
materials that may block radio wave signals.
3. Accumulation of snow or ice around the wheels or
wheel housings.
4. Using tire chains on the vehicle.
5. Using wheels/tires not equipped with TPM sensors.
The EVIC will also display a Service Tire Pressure
Monitoring System message for a minimum of five
seconds when a system fault related to an incorrect
sensor location fault is detected. In this case, the Service
Tire Pressure Monitoring System message is then fol-
lowed with a graphic display with pressure values still
shown. This indicates that the pressure values are still
being received from the TPM sensors but they may not be
located in the correct vehicle position. The system still
needs to be serviced as long as the Service Tire Pressure
Monitoring System message is displayed.
NOTE:
• The TPMS will not monitor the pressure in a replace-
ment tire installed without a tire pressure sensor.
• If you install a replacement tire in place of a road tire
that has a pressure below the low-pressure warning
limit, upon the next ignition switch cycle, the "Tire
Pressure Monitoring Telltale Light" will remain on and
a chime will sound. In addition, the highlighted
graphic in the EVIC will still display a pressure value
in a different color.
• After driving the vehicle for up to 20 minutes above
15 mph (24 km/h), the "Tire Pressure Monitoring
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