2016 Alfa Romeo 4C Spider sensor

•Supplemental Side Air Bags
• Supplemental Knee Air Bags
• Front and Side Impact Sensors
• Seat Belt Pretensioners
• Seat Belt Buckle Switch
• Seat Track Position Sensors
Advanced Front Air Bags
This vehicle has Advanced Front Air Bags for both the
driver and front passenger as a supplement to the seat
belt restraint systems. The driver ’s Advanced Front Air
Bag is mounted in the center of the steering wheel. The
passenger ’s Advanced Front Air Bag is mounted in the
instrument panel, above the glove compartment. The
words “SRS AIRBAG” or “AIRBAG” are embossed on
the air bag covers.
Advanced Front Air Bag Locations
1 — Driver And Passenger Advanced Front Air Bags
2 — Passenger Knee Bolsters
3 — Supplemental Driver Knee Air Bag/Driver Knee Bolster
2
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 43

WARNING!
•Being too close to the steering wheel or instrument
panel during Advanced Front Air Bag deployment
could cause serious injury, including death. Air
bags need room to inflate. Sit back, comfortably
extending your arms to reach the steering wheel or
instrument panel.
• Never place a rear-facing child restraint in front of
an air bag. A deploying Passenger Advanced Front
Air Bag can cause death or serious injury to a child
12 years or younger, including a child in a rear-
facing child restraint.
• Only use a rear-facing child restraint in a vehicle
with a rear seat.
Advanced Front Air Bag Features
The Advanced Front Air Bag system has multistage
driver and front passenger air bags. This system provides
output appropriate to the severity and type of collision as
determined by the Occupant Restraint Controller (ORC),
which may receive information from the front impact
sensors or other system components.
The first stage inflator is triggered immediately during an
impact that requires air bag deployment. A low energy
output is used in less severe collisions. A higher energy
output is used for more severe collisions.
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.
44 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

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 colli-
sions, and also are needed to help keep you in position,
away from an inflating air bag.
When the ORC detects a collision requiring the Ad-
vanced Front Air Bags, it signals the inflator units. A large
quantity of non-toxic gas is generated to inflate the
Advanced 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 Advanced
Front Air Bags fully inflate in less time than it takes to
blink your eyes. The 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 occu-
pants for improved interaction with the Advanced 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
46 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

inflate with enough force to injure occupants if they are
not belted and seated properly, or if items are positioned
in the area where the SABICs inflate. Children are at an
even greater risk of injury from a deploying air bag.
SABICs are designed to activate in certain side impacts.
The Occupant Restraint Controller (“ORC”) determines
whether the deployment of the SABIC 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 SABIC on the
impact side of the vehicle during impacts that require
SABIC occupant protection. In side impacts, the SABICs
deploy independently; a left side impact deploys the left
side SABIC only and a right-side impact deploys the
right side SABIC only. Vehicle damage by itself is not a
good indicator of whether or not SABICs should have
deployed.SABICs 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 compart-
ment. SABICs may deploy during angled or offset frontal
collisions where the Advanced Front Air Bags deploy.
SABICs are a supplement to the seat belt restraint system.
SABICs deploy in less time than it takes to blink your
eyes. Occupants, including children, who are up against
or very close to SABICs 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 SABIC.
To get the best protection from the SABICs, occupants
must wear their seat belts properly and sit upright with
48 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

▫Lane Change Assist ....................94
▫ Follow Me Home/Headlight Delay — If
Equipped ............................94
▫ Dimmer Controls ......................95
▫ Interior Light .........................96
 WINDSHIELD WIPERS AND WASHERS ......97
▫ Intermittent Wiper System ...............97
▫ Windshield Wiper Operation ..............98
▫ Mist ................................98
▫ Windshield Washers ....................98
 TILT/TELESCOPING STEERING COLUMN ....99
 ELECTRONIC SPEED CONTROL — IF
EQUIPPED .......................... .100
▫ To Activate ......................... .100▫
To Set A Desired Speed .................101
▫ To Deactivate ....................... .101
▫ To Resume Speed .....................101
▫ To Vary The Speed Setting ...............102
▫ To Accelerate For Passing ...............103
 PARKING SENSORS — IF EQUIPPED .......104
▫ Activation/Deactivation .................104
▫ Acoustic Signal ...................... .104
▫ Indications On Display — If Equipped ......105
▫ Fault Indication ...................... .106
▫ General Warnings .....................106
 POWER OUTLETS .....................108
74 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

PARKING SENSORS — IF EQUIPPED
They are located in the rear bumper and their function is
to detect the presence of any obstacles near the rear part
of the vehicle; they consequently inform the driver,
through an intermittent acoustic signal.
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.
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 obstacle
decreases, culminating in a continuous acoustic signal
when the distance is less than approximately 12 in
(30 cm).
Parking Sensors
104 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

•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 concerns
the side sensors, the signal will stop after approxi-
mately 3 seconds to avoid, for example, indications in
the event of manoeuvres along a wall.
If several obstacles are detected by the sensors, only the
nearest one is considered.
Indications On Display — If Equipped
When the sensors are activated, the screen appears on the
display. Obstacle presence and distance information is therefore
provided both by the acoustic signal and the instrument
panel 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.Parking Sensors Screen
3
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 105

If an obstacle is detected in the rear central area, the
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 display depends on the distance from
and position of the obstacle.
The vehicle is close to the obstacle when the display
shows a single constant arc and emits a continuous
sound.
If there are several obstacles, the closest one is indicated.Fault Indication
Parking sensor failures, if any, will be indicated when
reverse is engaged by the switching on of the
warn-
ing light on the instrument panel together with the
message on the 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 sensi-
tivity of the sensor itself and therefore reduce the
system performance.
106 UNDERSTANDING THE FEATURES OF YOUR VEHICLE