sensor FIAT 124 SPIDER 2021 Owner handbook (in English)

indicate when the system is not
operating properly.
IMPORTANT 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.
IMPORTANT To avoid false readings,
the system samples for a little while
before indicating a problem. As a result
it will not instantaneously register a
rapid tire deflation or blow out.
Because this system detects slight
changes in tire conditions, the timing ofthe warning may be faster or slower in
the following cases.
the size, manufacturer, or the type of
tires is different from the specification;
the size, manufacturer, or the type of
a tire is different from the others, or the
level of tire wear is excessively different
between them;
a run-flat tire (where provided),
studless tire, snow tire, or tire chains
are used;
an emergency tire is used (tire
pressure monitoring system warning
light may flash and then continue
illuminating);
a tire is repaired using the emergency
flat tire repair kit;
the tire pressure is excessively higher
than the specified pressure, or the tire
pressure is suddenly lowered for some
reason such as a tire burst during
driving;
the vehicle speed is lower than about
15 km/h (9 mph) (including when the
vehicle is stopped), or the drive period
is shorter than 5 minutes;
the vehicle is driven on an extremely
rough road or a slippery, icy road;
hard steering and rapid
acceleration/deceleration are repeated
such as during aggressive driving on a
winding road;
load on the vehicle is applied to a tire
such as by loading heavy luggage toone side of the vehicle;
system initialization has not been
implemented with the specified tire
pressure.
System error activation
When the TPMS warning light flashes,
there may be a system malfunction.
Contact a Fiat Dealership.
A system error activation may occur in
the following cases:
when there is equipment or a device
near the vehicle using the same radio
frequency as that of the tire pressure
sensors;
when a metallic device such as a
non-genuine navigation system is
equipped near the center of the
dashboard, which may block radio
signals from the tire pressure sensor to
the receiver unit;
when using the following devices in
the vehicle that may cause radio
interference with the receiver unit;
a digital device such as a personal
computer;
a current converter device such as a
DC-AC converter;
when excess snow or ice adheres to
the vehicle, especially around the
wheels;
when the tire pressure sensor
batteries are exhausted;
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SAFETY

when using a wheel with no tire
pressure sensor installed;
when using tires with steel wire
reinforcement in the side walls;
when using tire chains.
Tires and wheels
IMPORTANT When inspecting or
adjusting the tire air pressures, do not
apply excessive force to the stem part
of the wheel unit. The stem part could
be damaged.
Changing tires and wheels
The following procedure allows the
TPMS to recognize a tire pressure
sensor's unique ID signal code
whenever tires or wheels are changed,
such as changing to and from winter
tires.
IMPORTANT Each tire pressure sensor
has a unique ID signal code. The signal
code must be registered with the TPMS
before it can work. The easiest way to
do it is to have a Fiat Dealership change
your tire and complete ID signal code
registration.
When having tires changed at a Fiat
Dealership: when a Fiat Dealership
changes your vehicle's tires, they will
complete the tire pressure sensor ID
signal code registration.
When changing tires yourself:ifyouor someone else changes tires, you or
someone else can also undertake the
steps for the TPMS to complete the ID
signal code registration:
after tires have been changed, switch
the ignition ON, then back to ACC or
OFF;
wait for about 15 minutes;
after about 15 minutes, drive the
vehicle at a speed of at least 25 km/h
for 10 minutes and the tire pressure
sensor ID signal code will be registered
automatically.
IMPORTANT If the vehicle is driven
within about 15 minutes of changing
tires, the
warning light will flash
because the sensor ID signal code
would not have been registered. If this
happens, park the vehicle for about
15 minutes, after which the sensor ID
signal code will register upon driving the
vehicle for 10 minutes.
Replacing tires and wheels
IMPORTANT When replacing/repairing
the tires or wheels or both, have the
work done by a Fiat Dealership, or the
tire pressure sensors may be damaged.
IMPORTANT The wheels equipped on
your vehicle are specially designed for
installation of the tire pressure sensors.
Do not use non-genuine wheels,otherwise it may not be possible to
install the tire pressure sensors.
Be sure to have the tire pressure
sensors installed whenever tires or
wheels are replaced.
When having a tire or wheel or both
replaced, the following types of tire
pressure sensor installations are
possible:
the tire pressure sensor is removed
from the old wheel and installed to the
new one;
the same tire pressure sensor is used
with the same wheel. Only the tire is
replaced;
a new tire pressure sensor is installed
to a new wheel.
IMPORTANT The tire pressure sensor
ID signal code must be registered when
a new tire pressure sensor is
purchased. For purchase of a tire
pressure sensor and registration of the
tire pressure sensor ID signal code,
consult a Fiat Dealership.
IMPORTANT When reinstalling a
previously removed tire pressure sensor
to a wheel, replace the grommet (seal
between valve body/sensor and wheel)
for the tire pressure sensor.
79

SBA SYSTEM
(Seat Belt Alert)
SEAT BELT WARNING
LIGHT
The LED on dashboard trim turns on if
the driver or passenger's seat is
occupied and the seat belt is not
fastened with the ignition switched ON.
If the driver or passenger's seat belt is
unfastened (only when the passenger
seat is occupied) and the vehicle is
driven at a speed faster than about
20 km/h, the
LED flashes. After a
short time, the LED stops flashing, but
remains illuminated.
If a seat belt remains unfastened, the
LED flashes again for a given period of
time. In this case, fasten the seat belt.
If the driver or passenger's seat belt is
unfastened after the LED turns on, and
the vehicle speed exceeds 20 km/h, the
LED flashes again.
SEAT BELT
PRETENSIONER AND
LOAD LIMITING
SYSTEMS
PRETENSIONERS
92) 93) 94) 95)
For optimum protection, the driver and
passenger seat belts are equipped with
pretensioner and load limiting systems.
For both these systems to work
properly you must wear the seat belt
properly.
When a collision is detected, the
pretensioners deploy simultaneously
with the air bags. For deployment
details, refer to the “SRS air bag
deployment criteria” paragraph in this
chapter.
The seat belt retractors remove slack
quickly as the air bags are expanding.
Any time the air bags and seat belt
pretensioners have fired they must be
replaced.A system malfunction or operation
conditions are indicated by a warning.
Refer to “Warning lights and messages”
and “Warning sound is activated”
paragraph in “Knowing the instrument
panel” chapter.
In addition, the pretensioner system for
the passenger, like the front and side
passenger air bag, is designed to only
deploy when the passenger occupant
classification sensor detects a
passenger sitting on the passenger's
seat. For details, refer to the passenger
occupant classification sensor.
IMPORTANT The pretensioner system
may not operate depending on the type
of the collision. For details, refer to the
“SRS Air Bag deployment criteria”
paragraph.
IMPORTANT Some smoke (non-toxic
gas) will be released when the air bags
and pretensioners deploy. This does
not indicate a fire. This gas normally
has no effect on occupants, however,
those with sensitive skin may
experience slight skin irritation. If
residue from the deployment of the air
bags or the pretensioner system gets
on the skin or in the eyes, wash it off as
soon as possible.
85

A child who has outgrown
child-restraint systems should use seat
belts, both lap and shoulder. If the
shoulder belt crosses the neck or face,
move the child closer to the centre of
the vehicle.
A rear-facing child-restraint system
shouldNEVERbe used on the
passenger seat with the air bag system
activated. In the event of an impact the
air bag activation may cause fatal
injuries to the transported child.
To reduce the chance of injuries caused
by deployment of the passenger air
bag, the passenger occupant
classification sensor work as a part of
the supplementary restraint system.
This system deactivates the passenger
front and side air bags and also the
passenger seat belt pretensioner
system when the passenger air bag
deactivation OFF indicator light
illuminates.
When an infant or small child sits on the
passenger seat, the system shuts off
the passenger front and side air bags
and seat belt pretensioner system, so
make sure the passenger air bag
deactivation OFF indicator light
illuminates. For more details, refer to
"Passenger occupant classification
sensor" in “Front Air Bags” paragraph.IMPORTANT A seat belt or
child-restraint system can become very
hot in a closed vehicle during warm
weather. To avoid burning yourself or a
child, check them before you or your
child touches them.
NOTE Your vehicle is equipped with
ISOFIX anchors for attachment of
ISOFIX child-restraint systems. When
using these anchors to secure a
child-restraint system, refer to “Using
ISOFIX anchor” paragraph in this
chapter.
87

98)Always secure a child in a proper
child-restraint system. Holding a child in
your arms while the vehicle is moving is
extremely dangerous. No matter how
strong the person may be, he or she
cannot hold onto a child in a sudden stop
or collision and it could result in serious
injury or death to the child or other
occupants. Even in a moderate accident,
the child may be exposed to air bag forces
that could result in serious injury or death
to the child, or the child may be slammed
into an adult, causing injury to both child
and adult.
99)Always make sure the passenger air
bag deactivation OFF indicator light is
illuminated when using a child-restraint
system. Seating a child in a child-restraint
system that is installed on the passenger
seat with the passenger air bag
deactivation OFF indicator light not
illuminated is extremely dangerous. In an
accident, an air bag could inflate and
cause serious injuries or even death to the
child seated in the child-restraint system.
Always make sure the passenger air bag
deactivation OFF indicator light is
illuminated.
100)Extreme Hazard! Never use a
rear-facing child-restraint system on the
passenger seat with an air bag that could
deploy: NEVER use a rearward facing
child-restraint on a seat protected by an
ACTIVE AIRBAG in front of it, DEATH or
SERIOUS INJURY to the CHILD can occur.
Vehicles with a passenger air bag have a
warning label attached on the passenger
This warning label is displayed in
compliance with regulations.101)Even in a moderate collision, the
child-restraint system can be hit by a
deploying air bag and moved violently
backward resulting in serious injury or
death to the child. If your vehicle is
equipped with a passenger occupant
classification system, always make sure the
passenger air bag deactivation OFF
indicator light is illuminated, when installing
a rear-facing child-restraint system on the
passenger seat.
102)Before installing child-restraint system
on the passenger seat, move the
passenger seat as far back as possible.
The rearmost position may not be suitable
for the installation of some child-restraint
systems. In a collision, the force of a
deploying air bag could cause serious
injury or death to the child. Make sure the
passenger air bag deactivation OFF
indicator light is illuminated.103)Seating a child in a child-restraint
system on the passenger seat is
dangerous under certain conditions. Your
vehicle is equipped with passenger
occupant classification sensor. Even with
the passenger occupant classification
sensor, if you must use the passenger seat
to seat a child, using a child-restraint
system on the passenger seat under the
following conditions increases the danger
of the passenger air bag deploying and
could result in serious injury or death to the
child. The passenger air bag deactivation
OFF indicator light does not illuminate
when seating a child in the child-restraint
system / Luggage or other items are
placed on the seat with the child in the
child-restraint system / The seat is washed
/ Liquids are spilled on the seat / The
passenger seat is moved backward,
pushing into luggage or other items placed
behind it / Luggage or other items are
placed between the passenger seat and
driver seat / An electric device is put on the
passenger's seat / An additional electrical
device, such as a seat warmer is installed
to the surface of the passenger seat.
97
side sun visor (refer to "Passenger side
front air bag and child-restraint systems").

SUPPLEMENTARY RESTRAINT SYSTEM COMPONENTS
1Driver/Passenger inflators and air bags
2Crash sensors and diagnostic module (SAS unit)
3Seat belt pretensioners
4Front air bag sensors
5Side crash sensors
6Air bag/seat belt pretensioner system warning light
7Side inflators and air bags
8Passenger air bag deactivation indicator light
9Passenger occupant classification sensor
10Passenger occupant classification module
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101

HOW THE SRS AIR BAGS
WORK
121) 122) 123) 124) 125) 126) 127) 128) 129) 130) 131) 134)
139)
Your vehicle is equipped with the
following types of SRS air bags. SRS air
bags are designed to work together
with the seat belts to help to reduce
injuries during an accident. The SRS air
bags are designed to provide further
protection for passengers in addition to
the seat belt functions. Be sure to wear
seat belts properly.
Seat Belt Pretensioners
The seat belt pretensioners are
designed to deploy in moderate or
severe frontal, near frontal collisions. In
addition, during a side collision, the
pretensioner operates on the side in
which the collision occurs. The
pretensioners operate differently
depending on what types of air bags
are equipped. For more details about
seat belt pretensioner operation, refer
to the SRS Air Bag Deployment Criteria.
Driver Air Bag
The driver's air bag is mounted in the
steering wheel fig. 76.When air bag crash sensors detect a
frontal impact of greater than moderate
force, the driver's air bag inflates quickly
helping to reduce injury mainly to the
driver's head or chest caused by
directly hitting the steering wheel. For
more details about air bag deployment,
refer to “SRS Air Bag deployment
criteria” in this chapter.
Passenger Air Bag
(Single stage)
The passenger air bag is mounted in
the passenger dashboard fig. 77.The inflation mechanism for the
passenger air bag is the same as the
driver's air bag. For more details about
air bag deployment, refer to "SRS Air
Bag deployment criteria" in this chapter.
In addition, the passenger air bag is
designed to only deploy when the
passenger occupant classification
sensor detects a passenger sitting on
the passenger's seat. For more details
about air bag deployment, refer to
"SRS Air Bag deployment criteria" in
this chapter.
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102
SAFETY

Side Air Bags
The side air bags are mounted in the
outer sides of the seat backs fig. 78.
When the air bag crash sensors detect
a side impact of greater than moderate
force, the system inflates the side air
bag only on the side in which the
vehicle was hit.
The side air bag inflates quickly to
reduce injury to the driver or
passenger's head and chest caused by
directly hitting interior parts such as adoor or window. For more details about
air bag deployment, refer to "SRS Air
Bag deployment criteria" in this chapter.
In addition, the passenger side bag is
designed to only deploy when the
passenger occupant classification
sensor detects a passenger sitting on
the passenger's seat.
Warning Light/Beep
A system malfunction or operation
conditions are indicated by a warning.
Refer to “Warning lights and messages”
paragraph in “Knowing your instrument
panel” chapter. Refer to “Warning
sound is activated” paragraph in
“Knowing your instrument panel”
chapter.Passenger side front air bag and
child-restraint systems
Rearward-facing child restraint systems
mustNEVERbe fitted on the front seat
with an active passenger side air bag
since in the event of an impact the air
bag activation may cause fatal injuries
to the transported child.
ALWAYScomply with the instructions
on the label stuck on the passenger
side sun visor fig. 79.
7806010205-126-123
7903030100-133-555
103

X: the SRS air bag equipment is designed to deploy in a collision.
(*) In a side collision, the seat belt pretensioners and the side air bags deploy (only on the side in which the collision occurs).
(**) The passenger front and side air bags and the seat belt pretensioner are designed to deploy when the passenger occupant
classification sensor detects a passenger sitting on the passenger's seat.
IMPORTANT In a frontal offset collision, the equipped air bags and pretensioners may all deploy depending on the direction,
angle, and rate of impact.
105

PASSENGER OCCUPANT
CLASSIFICATION
SYSTEM
134) 139)
First, please read "Supplemental
Restraint System (SRS) Precautions"
carefully.
Passenger occupant classification
sensor
Your vehicle is equipped with a
passenger occupant classification
sensor as a part of the supplementary
restraint system. This sensor is
equipped in the passenger's seat
cushion. This sensor measures the
electrostatic capacity of the
passenger's seat.The SAS unit is designed to prevent the
passenger front and side air bags and
seat belt pretensioner system from
deploying if the passenger air bag
deactivation indicator light turns on.
To reduce the chance of injuries caused
by deployment of the passenger air
bag, the system deactivates the
passenger front and side air bags and
also the seat belt pretensioner system
when the passenger air bag
deactivation indicator light turns on.
This system shuts off the passenger
front and side air bags and seat belt
pretensioner system, so make sure the
passenger air bag deactivation indicator
light turns on.
The air bag/seat belt pretensioner
system warning light flashes and the
passenger air bag deactivation indicator
light illuminates if the sensors have a
possible malfunction. If this happens,
the passenger front and side air bags
and seat belt pretensioner system will
not deploy.
IMPORTANT Under the following
conditions fig. 84, the passenger
occupant classification sensor cannot
detect a passenger sitting on the
passenger's seat correctly and the
deployment/non-deployment of the air
bags cannot be controlled as indicated
in the passenger air bag deactivation
indicator light on/off condition chart.
light on/off condition chart.
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107
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