2018 FIAT 500C sensor

Each time the ignition is turned to ON/RUN or ACC/ON/
RUN, the ESC system will be on, even if it was turned off
previously.
— External Light Failure Indicator Light —
If Equipped
The External Light Failure Indicator will come on when a
failure to one of the following lights is detected:
• Direction Indicators
• Backup Lights
• Parking Lights
• Daytime Running Lights
• License Plate Lights
The failure relating to these lights could be:
• One or more blown bulbs
• A blown protection fuse
• A break in the electrical connection
— Fuel Cutoff Warning Light — If Equipped
This warning light will illuminate after an accident has
occurred, and the system has shut the fuel off. — Fuel Cutoff Failure Light — If Equipped
This light will illuminate if there is a fuel cutoff failure. If
this light illuminates, take it to an authorized dealer and
have them inspect it.
— Generic Warning Light
The Generic Warning Light will illuminate if any of the
following conditions occur: Oil Change Request, Engine
Oil Pressure Sensor Failure, External Light Failure, Fuel
Cut-Off Not Available, Parking Sensor Failure, DST System
Failure.
— Hill Holder Failure Warning Light
This warning light will illuminate when the Hill Holder
System is not functioning properly and service is required.
Contact an authorized dealer.
— Low Fuel Warning Light
When the fuel level reaches approximately 1–1.3 gal (3–5 L)
this light will turn on, and remain on until fuel is added.
— Engine Check/Malfunction Indicator Warning
Light (MIL)
The Engine Check/Malfunction Indicator Light (MIL) is a
part of an Onboard Diagnostic System called OBD II that 4GETTING TO KNOW YOUR INSTRUMENT PANEL 89

Please note that the TPMS is not a substitute for proper tire
maintenance, and it is the driver ’s responsibility to main-
tain 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 malfunc-
tion 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. CAUTION!The TPMS has been optimized for the original equip-
ment 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 equip-
ment 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 inoper-
able. After using an aftermarket tire sealant it is
recommended that you take your vehicle to your au-
thorized dealer to have your sensor function checked.
— Immobilizer Vehicle Theft Alarm Warning Light
This warning light will illuminate when the vehicle secu-
rity alarm system has detected an attempt to break into the
vehicle.
— Fuel Level Sensor Failure
This light illuminates when there is a fuel level sensor
failure. If this light illuminates, take it to an authorized
dealer and have them inspect it.92 GETTING TO KNOW YOUR INSTRUMENT PANEL

Disabling/Enabling HSA
If you wish to turn the HSA system on or off, it can be done
using the Customer Programmable Features in the
Uconnect Settings. Refer to “Uconnect Settings” in “Multi-
media” for further information.
Electronic Stability Control (ESC)
The Electronic Stability Control (ESC) system enhances
directional control and stability of the vehicle under vari-
ous driving conditions. ESC corrects for oversteering or
understeering of the vehicle by applying the brake of the
appropriate wheel to assist in counteracting the oversteer-
ing or understeering condition. Engine power may also be
reduced to help the vehicle maintain the desired path. ESC
uses sensors in the vehicle to determine the vehicle path
intended by the driver and compares it to the actual path of
the vehicle. When the actual path does not match the
intended path, ESC applies the brake of the appropriate
wheel to assist in counteracting the oversteer or understeer
condition. • Oversteer - when the vehicle is turning more than
appropriate for the steering wheel position.
• Understeer - when the vehicle is turning less than
appropriate for the steering wheel position.
ESC Off Switch (Automatic Transmission) 5 SAFETY 103

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 informa-
tion.
For example, your vehicle may have a recommended 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 suffi-
ciently 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 established for the tire size
equipped on your vehicle. Undesirable system op-
eration 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 after-
market tire sealant it is recommended that you take
your vehicle to an authorized dealership to have your
sensor function checked.
• After inspecting or adjusting the tire pressure, al-
ways reinstall the valve stem cap. This will prevent
moisture and dirt from entering the valve stem,
which could damage the Tire Pressure Monitoring
Sensor. 5 SAFETY 107

NOTE:
• The TPMS is not intended to replace normal tire care and
maintenance, or to provide warning of a tire failure or
condition.
• The TPMS should not be used as a tire pressure gauge
while adjusting your tire pressure.
• Driving on a significantly under-inflated tire 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.
• The TPMS is not a substitute for proper tire mainte-
nance, and it is the driver ’s responsibility to maintain
correct tire pressure using an accurate tire gauge, even
if under-inflation has not reached the level to trigger
illumination of the Tire Pressure Monitoring System
Warning Light.
• Seasonal temperature changes will affect tire pressure,
and the TPMS will monitor the actual tire pressure in the
tire. TPM System With Comfort Cluster
This is the TPMS warning indicator located in the
instrument cluster.
The TPMS uses wireless technology with wheel rim
mounted electronic sensors to monitor tire pressure levels.
Sensors, mounted to each wheel as part of the valve stem,
transmit tire pressure readings to the Receiver Module.
NOTE: It is particularly important for you to check the tire
pressure in all of the tires on your vehicle regularly and to
maintain the proper pressure.
The TPMS consists of the following components:
• Receiver Module
• Four Tire Pressure Monitoring Sensors
• Tire Pressure Monitoring System Warning Light
• Text Message Display
Tire Pressure Monitoring Low Pressure Warnings
The Tire Pressure Monitoring System Warning Light will
illuminate in the instrument cluster, an audible chime will
be activated, and the “Low inflation pressure left or right
front/rear tire” text message will display when one or
more of the four active road tire pressures are low. Should108 SAFETY

this occur, you should stop as soon as possible, check the
inflation pressure of each tire on your vehicle, and inflate
each tire to the vehicle’s recommended cold placard pres-
sure value. The system will automatically update and the
Tire Pressure Monitoring Light will extinguish once the
updated tire pressures have been received. The vehicle
may need to be driven for up to 20 minutes above 15 mph
(24 km/h) to receive this information.
TPMS Warnings
The Tire Pressure Monitoring System 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 Sys-
tem” text message will display. If the ignition key is cycled,
this sequence will repeat providing the system fault still
exists. The Tire Pressure Monitoring System 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 key cycle, a chime will
sound, the Tire Pressure Monitoring System Warning
Light and the Low inflation pressure left or right front /
rear tire message will still turn ON due to the low tire.
• H owever, after driving the vehicle for up to 20 minutes
above 15 mph (24 km/h), the Tire Pressure Monitor-
ing System Warning Light will flash on and off for
75 seconds and then remain on solid and the “Service Tire
Pressure Monitoring System” message will be displayed.
• This occurs for each subsequent ignition key cycle, a
chime will sound and the Tire Pressure Monitoring System
Warning Light will flash on and off for 75 seconds and
then remain on solid and the “Service Tire Pressure
Monitoring System” message will be displayed. 5 SAFETY 109

• 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 Tire
Pressure Monitoring System 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.
T PM System With (TFT) Tire Pressure Display Screen
The Tire Pressure Monitor System (TPMS) uses wireless
technology with wheel rim mounted electronic sensors to
monitor tire pressure levels. Sensors, mounted to each
wheel as part of the valve stem, transmit tire pressure
readings to the receiver module.
The TPMS consists of the following components:
• Receiver module
• Four Tire Pressure Monitoring Sensors
• Various Tire Pressure Monitoring System messages,
which display in the instrument cluster
• Tire Pressure Monitoring System Warning Light Tire Pressure Monitoring Low Pressure Warnings
The Tire Pressure Monitoring System Warning Light
will illuminate in the instrument cluster and a
chime will sound when tire pressure is low in one or more
of the four active road tires. In addition, the instrument
cluster will display a low pressure text message and a
graphic showing the low tire pressure tire highlighted in a
different color.
Low Tire Indicator110 SAFETY

Should this occur, you should stop as soon as possible and
inflate the tires with low pressure to the vehicle’s recom-
mended cold placard pressure value. Once the system
receives the updated tire pressures, the system will auto-
matically update and the Tire Pressure Monitoring System
Warning Light will turn off. 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.
TPMS Warning
When a system fault is detected, the Tire Pressure Moni-
toring System Warning Light will flash on and off for 75
seconds and then remain on solid. The system fault will
sound a chime and also display a “Service Tire Pressure
Monitoring System” message in the instrument cluster for
approximately 5 seconds. If the ignition switch is cycled, this sequence will repeat,
providing the system fault still exists. If the system fault no
longer exists, the Tire Pressure Monitoring System Warning
Light will no longer flash, and the “Service Tire Pressure
Monitoring System” message will no longer display.
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 ma-
terials that may block radio wave signals. Service TPM System Message 5 SAFETY 111