sensor Alfa Romeo 4C Spider 2018 User Guide

This vehicle may be equipped with a driver and/or
front passenger seat belt buckle switch that detects
whether the driver or front passenger seat belt is
buckled. The seat belt buckle switch may adjust the
inflation rate of the Advanced Front Air Bags.
This vehicle may be equipped with driver and/or front
passenger seat track position sensors that may adjust
the inflation rate of the Advanced Front Air Bags based
upon seat position.
WARNING!
•No objects should be placed over or near the air
bag on the instrument panel or steering wheel
because any such objects could cause harm if the
vehicle is in a collision severe enough to cause the
air bag to inflate.
• Do not put anything on or around the air bag
covers or attempt to open them manually. You
may damage the air bags and you could be
injured because the air bags may no longer be
functional. The protective covers for the air bag
cushions are designed to open only when the air
bags are inflating.
(Continued)
WARNING! (Continued)
•Relying on the air bags alone could lead to more
severe injuries in a collision. The air bags work
with your seat belt to restrain you properly. In
some collisions, air bags won’t deploy at all.
Always wear your seat belts even though you
have air bags.
Front Air Bag Operation
Front Air Bags are designed to provide additional
protection by supplementing the seat belts. Front air
bags are not expected to reduce the risk of injury in rear,
side, or rollover collisions. The front air bags will not
deploy in all frontal collisions, including some that may
produce substantial vehicle damage — for example,
some pole collisions, truck underrides, and angle offset
collisions.
On the other hand, depending on the type and location
of impact, front air bags may deploy in crashes with
little vehicle front-end damage but that produce a
severe initial deceleration.
114 SAFETY

Because air bag sensors measure vehicle deceleration
over time, vehicle speed and damage by themselves are
not good indicators of whether or not an air bag should
have deployed.
Seat belts are necessary for your protection in all
collisions, and also are needed to help keep you in
position, away from an inflating air bag.
When the ORC detects a collision requiring the front air
bags, it signals the inflator units. A large quantity of
non-toxic gas is generated to inflate the front air bags.
The steering wheel hub trim cover and the upper right
side of the instrument panel separate and fold out of the
way as the air bags inflate to their full size. The front air
bags fully inflate in less time than it takes to blink your
eyes. The front air bags then quickly deflate while
helping to restrain the driver and front passenger.
Knee Impact Bolsters
The Knee Impact Bolsters help protect the knees of the
driver and front passenger, and position the front
occupants for improved interaction with the front air
bags.
WARNING!
•Do not drill, cut, or tamper with the knee impact
bolsters in any way.
• Do not mount any accessories to the knee impact
bolsters such as alarm lights, stereos, citizen band
radios, etc.
Supplemental Driver Knee Air Bag
This vehicle is equipped with a Supplemental Driver
Knee Air Bag mounted in the instrument panel below
the steering column. The Supplemental Driver Knee Air
Bag provides enhanced protection during a frontal
impact by working together with the seat belts, preten-
sioners, and front air bags.
Supplemental Side Air Bags
Supplemental Door-Integrated Side Air Bag Inflat-
able Curtains (SABICs)
This vehicle is equipped with Supplemental Door-
Integrated Side Air Bag Inflatable Curtains (SABICs).
SABICs may help reduce the risk of head and other
injuries to front seat outboard occupants in certain side
5
SAFETY 115

Side Impacts
The Side Air Bags are designed to activate in certain
side impacts. The Occupant Restraint Controller (ORC)
determines whether the deployment of the Side Air
Bags in a particular impact event is appropriate, based
on the severity and type of collision. The side impact
sensors aid the ORC in determining the appropriate
response to impact events. The system is calibrated to
deploy the Side Air Bags on the impact side of the
vehicle during impacts that require Side Air Bag occu-
pant protection. In side impacts, the Side Air Bags
deploy independently; a left side impact deploys the
left Side Air Bags only and a right-side impact deploys
the right Side Air Bags only. Vehicle damage by itself is
not a good indicator of whether or not Side Air Bags
should have deployed.
The Side Air Bags will not deploy in all side collisions,
including some collisions at certain angles, or some side
collisions that do not impact the area of the passenger
compartment. The Side Air Bags may deploy during
angled or offset frontal collisions where the front air
bags deploy.Side Air Bags are a supplement to the seat belt restraint
system. Side Air Bags deploy in less time than it takes to
blink your eyes.
WARNING!
•
Occupants, including children, who are up
against or very close to Side Air Bags can be
seriously injured or killed. Occupants, including
children, should never lean on or sleep against
the door, side windows, or area where the side air
bags inflate, even if they are in an infant or child
restraint.
• Seat belts (and child restraints where appropriate)
are necessary for your protection in all collisions.
They also help keep you in position, away from
an inflating Side Air Bag. To get the best protec-
tion from the Side Air Bags, occupants must wear
their seat belts properly and sit upright with their
backs against the seats. Children must be prop-
erly restrained in a child restraint or booster seat
that is appropriate for the size of the child.
5
SAFETY 117

WARNING!
•Side Air Bags need room to inflate. Do not lean
against the door or window. Sit upright in the
center of the seat.
• Being too close to the Side Air Bags during
deployment could cause you to be severely in-
jured or killed.
• Relying on the Side Air Bags alone could lead to
more severe injuries in a collision. The Side Air
Bags work with your seat belt to restrain you
properly. In some collisions, Side Air Bags won’t
deploy at all. Always wear your seat belt even
though you have Side Air Bags.
NOTE:
Air bag covers may not be obvious in the interior
trim, but they will open during air bag deployment.
Air Bag System Components
NOTE: The Occupant Restraint Controller (ORC) moni-
tors the internal circuits and interconnecting wiring
associated with electrical Air Bag System Components
listed below:
• Occupant Restraint Controller (ORC)
• Air Bag Warning Light
•Steering Wheel and Column
• Instrument Panel
• Knee Impact Bolsters
• Driver and Front Passenger Air Bags
• Seat Belt Buckle Switch
• Supplemental Side Air Bags
• Supplemental Knee Air Bags
• Front and Side Impact Sensors
• Seat Belt Pretensioners
• Seat Track Position Sensors
If A Deployment Occurs
The front air bags are designed to deflate immediately
after deployment.
NOTE: Front and/or side air bags will not deploy in all
collisions. This does not mean something is wrong with
the air bag system.
118 SAFETY

PARKING SENSORS — IF EQUIPPED ......156
▫ Acoustic Signal ..................... .156
▫ Indications On Display — If Equipped .....157
▫ Activation/Deactivation ................157
▫ Fault Indication ..................... .158
▫ General Warnings ....................158 
ADDING FUEL/SMART FUEL ............159
 TRAILER TOWING ....................161
 RECREATIONAL TOWING (BEHIND
MOTORHOME, ETC.) ..................161
▫ Towing This Vehicle Behind Another Vehicle .161
 DRIVING TIPS ....................... .162
▫ Driving On Slippery Surfaces ............162
▫ Driving Through Water ................163
138 STARTING AND OPERATING

memory. Rotating the end of the multifunction lever to
the O (off) position, or turning the ignition switch to
OFF, erases the set speed memory.
PARKING SENSORS — IF EQUIPPED
The vehicle’s parking sensors are located in the rear
bumper, and will detect the presence of any obstacles
near the rear part of the vehicle while moving in
REVERSE gear. The driver is then informed through an
intermittent acoustic signal.
Acoustic Signal
When REVERSE gear is engaged, and there is an
obstacle behind the vehicle, an acoustic signal is emitted
which varies according to the distance of the bumper
from the obstacle.
The frequency of the acoustic signal:
•Increases as the distance between vehicle and ob-
stacle decreases, culminating in a continuous acous-
tic signal when the distance is less than approxi-
mately 12 inches (30 cm).
• Decreases if the distance from the obstacle increases,
until the signal ceases entirely.
• Remains constant if the distance between vehicle and
obstacle remains unchanged; if this situation con-
cerns the side sensors, the signal will stop after
approximately 3 seconds, for example, in the event of
manoeuvres along a wall.
If several obstacles are detected by the sensors, only the
nearest one is considered.
Parking Sensors
156 STARTING AND OPERATING

Indications On Display — If Equipped
When the sensors are activated, the parking sensor
display screen appears in the instrument cluster.
Obstacle presence and distance information is therefore
provided both by the acoustic signal and the instrument
cluster display.
The system indicates a detected obstacle by displaying
an arc in one or more positions according to the distance
of the obstacle and its position in relation to the vehicle.If an obstacle is detected in the rear central area, the
instrument cluster display shows all the arcs in the rear
central area, up to the one that corresponds to the
position of the obstacle itself.
The signal is similar for obstacles in the rear left or right
area.
The arc that corresponds to the position of the obstacle
will flash.
The color on the instrument cluster display depends on
the distance from and position of the obstacle.
The vehicle is close to the obstacle when the instrument
cluster display shows a single constant arc and emits a
continuous sound.
If there are several obstacles, the closest one is indi-
cated.
Activation/Deactivation
The sensors are automatically activated when REVERSE
gear is engaged. As the obstacle behind the vehicle gets
closer, the acoustic signal becomes more frequent.
Parking Sensor Display Screen
6
STARTING AND OPERATING 157

Fault Indication
Parking sensor failures, if any, will be indicated when
REVERSE gear is engaged by the switching on of the
warning light in the instrument cluster display.
General Warnings
When parking, take the utmost care over obstacles that
may be above or under the sensor.
Under certain circumstances, objects close to the vehicle
are not detected by the system and could therefore
cause damage to the vehicle or be damaged themselves.
Some conditions may influence the performance of the
parking sensors:
• The presence of ice, snow, mud or multiple layers of
paint on the sensor surface may cause reduced
sensitivity of the sensor itself and therefore reduce
the system performance.
• Mechanical interference (e.g washing the vehicle,
rain, strong wind, hail) may cause the sensor to
detect a non-existent obstacle (“echo interference”).
• The presence of ultrasonic systems (e.g. pneumatic
brake systems of trucks or pneumatic drills) near the
vehicle could alter the signals sent by the sensor. •
The variation in sensor position, caused by variation
in ride (due to suspension component wear), chang-
ing tires, overloaded vehicle, or tuning that lowers
the vehicle, for example, may affect parking sensor
system performance.
NOTE: The sensor must be free from mud, dirt snow or
ice in order for the system to operate correctly. Be
careful not to scratch or damage the sensors while
cleaning them. Avoid using dry, rough or hard cloths.
The sensors must be washed using clean water, with the
addition of car shampoo if necessary. When using
special washing equipment such as high pressure jets or
steam cleaning, clean the sensors very quickly keeping
the jet more than 4 inches (10 cm) away. Also, do not
apply stickers to the sensors.
WARNING!
Drivers must be careful when backing up even
when using the Parking Sensor system. Always
check carefully behind your vehicle, and be sure to
check for pedestrians, animals, other vehicles, ob-
structions, or blind spots before backing up. You
are responsible for the safety of your surroundings
(Continued)
158 STARTING AND OPERATING

WARNING!(Continued)
and must continue to pay attention while backing
up. Failure to do so can result in serious injury or
death.
CAUTION!
•The Parking Sensor system is only a parking aid
and it is unable to recognize every obstacle,
including small obstacles. Parking curbs might be
temporarily detected or not detected at all. Ob-
stacles located above or below the sensors will
not be detected when they are in close proximity.
• The vehicle must be driven slowly when using
the Parking Sensor system in order to be able to
stop in time when an obstacle is detected. It is
recommended that the driver looks over his/her
shoulder when using the Parking Sensor system.
ADDING FUEL/SMART FUEL
NOTE:
• The Smart Fuel is a device placed on the top of the
filler pipe; it opens and closes automatically when
the fuel nozzle is inserted or extracted.
• Only the correct nozzle size diameter allows the flap
door to open when the nozzle is inserted.
Refueling Procedure
1. Open the fuel filler door pulling towards outside.
Fuel Filler Door Location
6
STARTING AND OPERATING 159