2012 SMART FORTWO COUPE weight

How an air bag operates
An air bag is inflated in a matter of
milliseconds. If an air bag is triggered,
the SRS indicator lamp
6 in the
instrument cluster illuminates.
! If the air bags are activated, you will
hear a loud noise and some dust may be
generated. The explosion fundamentally
represents no risk to your hearing.
An
inflated air bag slows down and reduces
the movement of the occupant. When the
occupant makes contact with a front air bag
or head-thorax air bag (cabriolet only),
hot gas flows out of the inflated front air
bags and head-thorax air bags (cabriolet
only). This reduces the load on the
occupant’s head and upper body. These air
bags are consequently deflated after the
accident.
Driver front air bag/passenger front air
bag The front air bags are designed to reduce
the potential of injury in certain frontal
impacts.
Driver front air bag and passenger front
air bag are deployed
R
at the start of an accident with high
vehicle

deceleration in the longitudinal
direction
R independently of other air bags in the
vehicle being deployed
R never in the event of a rollover, unless
high vehicle deceleration in the
longitudinal direction is detected
i The front air bags in this vehicle have
been designed to inflate in two stages.
This allows the air bag to have different
rates of inflation that are based on the
rate of relevant vehicle deceleration
and a fastened or unfastened seat belt as
assessed by the air bag control unit.
On the passenger side, the front air bag
deployment is additionally influenced by the passenger’s weight category as
identified by the Occupant
Classification System (OCS)
(Y page 39).
The

lighter the passenger side occupant,
the higher the vehicle deceleration rate
required for the second stage inflation
of the air bag.
The air bags will not deploy in impacts
which do not exceed the system’s
deployment thresholds. In such instances,
the seat belts are designed to protect you.
The passenger air bag will only be
deployed if
R the system, based on OCS weight sensor
readings, senses that the passenger seat
is occupied and the 4 0
indicator lamp is not lit (Y page 41)
R the impact exceeds a preset deployment
threshold
The driver front air bag is located in the
steering wheel housing, the passenger
front air bag above the glove box. :
Driver front air bag
; Passenger front air bag36
Occupant safety
>> Safety.

Knee bags
:
Driver’s knee bag
; Passenger knee bag
The knee bags are designed to provide
increased protection for the driver and
passenger against the risk of injuries to
the knees, thighs and lower legs. The knee
bags are located on the lower instrument
panel. They are designed to operate
together
with the front air bags in certain
frontal impacts if the system determines
that air bag deployment can offer
additional protection to that provided by
the seat belts. Knee bags operate best in
conjunction with a properly positioned
and fastened seat belts.
Head-thorax air bags (cabriolet only) G
WARNING
There is a possibility for a head-thorax air
bag
related injury if occupants, especially
children, are not properly seated or
restrained when next to a head-thorax air
bag which needs to deploy rapidly in a side
impact in order to do its job.
To help avoid the possibility of injury,
please follow these guidelines:
(1) Occupants, especially children, should never place their bodies
or

lean their heads in the area of
the door where the head-thorax
air bag inflates. This could
result in serious injuries or death should the head-thorax air
bag be deployed.
(2) Always sit as upright as possible, properly use the seat
belts, and for all children
12 years old or under, use an
appropriately sized infant
restraint, toddler restraint, or
booster seat recommended for
the

size and weight of the child.
(3) Always wear seat belts properly. G
WARNING
Only use seat covers which have been tested
and approved by smart for your vehicle
model.

A seat cover must have a deployment
control seam for the head-thorax air bag.
Using other seat covers may interfere with
or prevent the deployment of the head-
thorax air bags. Contact an authorized
smart center for availability.
If activated, the head-thorax air bags are
intended to provide increased protection
for the head and thorax (but not arms) of the
occupants on the side of the vehicle that is
struck.
The head-thorax air bags are deployed
R on the side of the vehicle that is struck
(when passenger side is struck only if the
seat is occupied)
R at the start of an accident with high
vehicle deceleration or acceleration
acting in a lateral direction, e.g. a side
impact
R regardless of whether or not the seat belt
is in use
R independently of the front air bags
being deployed
R independently of the emergency
tensioning device
The head-thorax air bags are integrated
into the driver and passenger seat
backrests. Occupant safety
37
>> Safety. Z

:
Head-thorax air bag
Window curtain air bags and thorax-
pelvis side air bags (coupé only) G
WARNING
There is a possibility for a thorax-pelvis
side air bag related injury if occupants,
especially children, are not properly
seated
or restrained when next to a thorax-
pelvis side air bag which needs to deploy
rapidly in a side impact in order to do its
job.
To help avoid the possibility of injury,
please follow these guidelines:
(1) Occupants, especially children, should never place their bodies
or

lean their heads in the area of
the door where the thorax-pelvis
side air bag inflates. This could
result in serious injuries or
death should the thorax-pelvis
side air bag be deployed.
(2) Always sit as upright as possible, properly use the seat
belts, and for all children
12 years old or under, use an
appropriately sized infant
restraint, toddler restraint, or
booster seat recommended for
the

size and weight of the child.
(3) Always wear seat belts properly. G
WARNING
Only use seat covers which have been tested
and approved by smart for your vehicle
model.

A seat cover must have a deployment
control seam for the thorax-pelvis side air
bag. Using other seat covers may interfere
with or prevent the deployment of the
thorax-pelvis side air bags. Contact an
authorized smart center for availability.
Window curtain air bags
Window curtain air bags are designed to
provide increased protection for the head,
but not the chest or arms.
Window curtain air bags are deployed
R on the impacted side of the vehicle
R in instances with a high rate of lateral
vehicle deceleration or acceleration
R independently of the front air bags
R regardless of whether the passenger seat
is occupied
R in a rollover if the system determines
that air bag deployment can offer
additional protection to that provided
by the seat belt.
The window curtain air bags are integrated
into the inner side of the roof frame. They
run above the doors from the A-pillar to the
B-pillar. :
Window curtain air bags
Thorax-pelvis side air bags
Thorax-pelvis side air bags are designed
to provide increased protection for the
thorax and pelvis, but not the arms. 38
Occupant safety
>> Safety.

Thorax-pelvis side air bags are deployed
R
on the impacted side of the vehicle
R in instances with a high rate of lateral
vehicle deceleration or acceleration
R independently of the front air bags
R regardless
of whether the seat belt on the
impacted side of the vehicle is in use
R independently of the ETDs.
Thorax-pelvis side air bags will generally
not deploy in a rollover.
The thorax-pelvis side air bags will
deploy, however, if the system detects
R a high rate of lateral vehicle
deceleration or acceleration, and
R that air bag deployment can offer
additional protection to that provided
by the seat belt.
The thorax-pelvis side air bags are
integrated into the driver and passenger
seat backrests. :
Thorax-pelvis side air bags Occupant Classification System
The Occupant Classification System (OCS)
automatically

turns the passenger front air
bag on or off based on the classified
occupant weight category determined by
weight sensor readings from the passenger
seat. i
Based on the classified occupant
weight category determined by weight
sensor

readings from the passenger seat,
the system does also deactivate
R head-thorax air bag (cabriolet)
R the window curtain air bag (coupé)
R the thorax-pelvis side air bag (coupé)
R the seat Emergency Tensioning
Devices
R the seat belt force limiter.
Occupants must sit properly belted in a
position that is as upright as possible with
their back against the seat backrest and
feet on the floor to be correctly classified.
If the occupant’s weight is transferred to
another object in the vehicle (e.g. by
leaning on armrests), the OCS may not be
able to properly approximate the
occupant’s weight category.
i If the seat, including the trim cover and
cushion, needs to be serviced in any way,
take the vehicle to an authorized smart
center. Only seat accessories approved
by smart may be used.
Both driver and the passenger should
always use the 4 0 indicator
lamp as an indication of whether or not
the passenger is properly positioned
(Y page 41). G
WARNING
If the 4 0 indicator lamp
illuminates when an adult or someone
larger than a small individual is in the
passenger seat, have the passenger re-
position himself or herself in the seat
until the 4 0 indicator lamp
goes out.
In the event of a collision, the air bag
control

unit will not allow passenger front
air bag deployment when the OCS has
classified the passenger seat occupant as
being up to or less than the weight of a
typical 12‑month‑old child in a standard Occupant safety
39
>> Safety.
Z

child restraint, or if the passenger seat is
sensed as being empty.
When
the OCS senses that the passenger seat
occupant is classified as being up to or
less than the weight of a typical
12‑month‑old child in a standard child
restraint, the 4 0 indicator
lamp will illuminate when the ignition is
switched on and remain illuminated,
indicating that the passenger front air bag
is deactivated.
When the OCS senses that the passenger seat
is classified as being empty, the
4 0 indicator lamp will
illuminate and remains illuminated.
When the OCS senses that the passenger seat
occupant is classified as being heavier
than the weight of a typical 12‑month‑old
child seated in a standard child restraint
or as being a small individual (such as a
young teenager or a small adult), the
4 0 indicator lamp will
illuminate for approximately 4 seconds
when the ignition is switched on and then,
depending on occupant weight sensor
readings from the seat, remains
illuminated or goes out.
When the 4 0 indicator lamp is
illuminated, the passenger front air bag is
deactivated.
When the 4 0 indicator lamp is
out and the passenger seat is occupied by
an adult or someone larger than a small
individual, the passenger front air bag is
activated.
When the OCS senses that the passenger seat
occupant is classified as an adult or
someone larger than a small individual, the
4 0 indicator lamp will
illuminate for approximately 4 seconds
when the ignition is switched on and then
goes out, indicating that the passenger
front air bag is activated.
If the 4 0 indicator lamp is
illuminated, the passenger front air bag is
deactivated and will not be deployed. If the
4 0 indicator lamp is not
illuminated, the passenger front air bag is
activated and will be deployed
R in the event of certain frontal impacts
R if impact exceeds a preset deployment
threshold
R independently of the head-thorax air
bags
If the passenger front air bag is deployed,
the rate of inflation will be influenced by
R the rate of vehicle deceleration and a
fastened or unfastened seat belt as
assessed by the air bag control unit
R the passenger’s weight category as
identified by the OCS G
WARNING
Children 12 years old and under must be
seated and properly secured in an
appropriate infant or child restraint
recommended

for the size and weight of the
child.
The infant or child restraint must be
properly secured with the vehicle’s seat
belt, fully in accordance with the child
seat manufacturer’s instructions.
Children can be killed or seriously injured
by an inflating air bag. Note the following
important information:
R Your vehicle is equipped with air bag
technology designed to turn off the
passenger front air bag in your vehicle
when the system senses the weight of a
typical 12‑month‑old child or less along
with the weight of a standard
appropriate child restraint on the
passenger seat.
R A child in a rear-facing child restraint
on the passenger seat will be seriously
injured or even killed if the passenger
front air bag inflates in a collision
which could occur under some
circumstances, even with the air bag
technology installed in your vehicle. 40
Occupant safety
>> Safety.

R
If you install a rear-facing child
restraint on the passenger seat, make
sure the 4 0 indicator lamp
is illuminated, indicating that the
passenger front air bag is deactivated.
Should the 4 0 indicator
lamp not illuminate or go out while the
restraint is installed, please check
installation.
Periodically check the 4 0
indicator lamp while driving to make
sure the 4 0 indicator lamp
is illuminated.
If the 4 0 indicator lamp
goes
out or remains out, do not transport
a child on the passenger seat until the
system has been repaired.
A child in a rear-facing child restraint
on the passenger seat may be seriously
injured or even killed if the passenger
front air bag inflates.
R If you place a child in a forward-facing
child restraint on the passenger seat,
move the seat as far back as possible, use
the proper child restraint recommended
for the age, size and weight of the child
by the seat manufacturer, and secure
child restraint with the vehicle’s seat
belt according to the child seat
manufacturer’s instructions. For
children larger than the typical
12‑month‑old child, the passenger front
air bag may or may not be activated.
i Deployment of the driver front air bag
does not mean that the passenger front
air bag also should have deployed.
The Occupant Classification System may
have determined
R that the seat was empty or occupied by the
weight up to or less than that of a typical
12‑month‑old child seated in a standard
child restraint — both instances where
the system suppresses deployment of the
passenger front air bag even though the
impact met the criteria and was of sufficient severity to deploy the driver
front air bag
R that the seat was occupied by a small
individual (such as a young teenager or
a small adult) or a child weighing more
than
the weight of a typical 12‑month‑old
child in a standard child restraint —
instances where the system may suppress
deployment of the passenger front air
bag even though the impact met the
criteria and was of sufficient severity
to deploy the driver front air bag
Passenger front air bag off indicator
lamp The indicator lamp is located on the
overhead control panel.
Passenger front air bag off indicator
lamp : illuminates when the passenger
front air bag is deactivated.
G
WARNING
When the SRS indicator lamp 6 and the
4 0 indicator lamp are lit at
the

same time, there is a malfunction in the
Occupant Classification System.
In order to ensure proper operation of the
air bag system and OCS:
R Have the system checked as soon as
possible by qualified technicians.
Contact an authorized smart center.
R Sit properly belted in a position that is
as upright as possible with your back
against the seat backrest. Occupant safety
41
>> Safety.
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R
Do not lean on the armrests or lift
yourself
from the seat by using the handle
over the door as this may cause the OCS to
be unable to correctly approximate the
occupant weight category.
R Only have the seat repaired or replaced
by an authorized smart center.
R Read and observe all warnings in this
chapter.
Self-test Occupant Classification
System After turning the key in the starter switch
to position
1 or 2, the 4 0
indicator lamp located in the center
console illuminates. If an adult occupant
is properly sitting on the passenger seat
and

the system senses the occupant as being
an adult, the 4 0 indicator
lamp will illuminate and go out after
approximately 4 seconds.
If the seat is not occupied and the system
senses the passenger seat as being empty,
the 4 0 indicator lamp will
illuminate and not go out. G
WARNING
If the 4 0 indicator lamp does
not illuminate immediately after starting
the engine, the system is not functioning.
You

must contact an authorized smart center
before seating any child on the passenger
seat.
More information can be found in the
“Practical hints” section ( Y page 173).G
WARNING
Never place anything between seat cushion
and child seat (e.g. pillow), since it
reduces the effectiveness of the Occupant
Classification System. The bottom of the
child seat must make full contact with the
passenger seat cushion. An incorrectly
mounted

child seat could cause injuries to the child in case of an accident, instead of
increasing protection for the child.
Follow the manufacturer’s instructions for
installation of child seats.
Children in the vehicle
If an infant or child is traveling with you
in the vehicle:
X Secure the child using an infant or child
restraint

appropriate to the age and size
of the child.
X Make sure the infant or child is properly
secured

at all times while the vehicle is
in motion. G
WARNING
Do not leave children unattended in the
vehicle,
even if they are secured in a child
restraint system. The children could
R injure themselves on parts of the vehicle
R be seriously or fatally injured through
excessive exposure to extreme heat or
cold
Do not expose the child restraint system to
direct sunlight. The child restraint
system’s metal parts, for example, could
become very hot, and the child could be
burned on these parts.
If children open a door, they could
R injure other persons
R get out of the vehicle and injure
themselves or be injured by following
traffic
Do not carry heavy or hard objects in the
passenger compartment unless they are
firmly secured in place.
For more information, please refer to the
“Loading and storing section”. 42
Occupant safety
>> Safety.

Unsecured or improperly positioned cargo
increases a child’s risk of injury in the
event of
R
strong braking maneuvers
R sudden changes of direction
R an accident
Infant and child restraint system We recommend all infants and children be
properly restrained at all times while the
vehicle is in operation.
The passenger lap-shoulder belt has a
special seat belt retractor for secure
fastening of child restraints.
To fasten a child restraint, follow all
mounting instructions provided by the
child
restraint manufacturer. Then pull the
shoulder seat belt out completely and let it
retract. During seat belt retraction, a
ratcheting sound can be heard to indicate
that the special seat belt retractor is
activated. The seat belt is now locked. Push
down on child restraint to take up any
slack.
To deactivate, release seat belt buckle and
let seat belt retract completely. To
deactivate the special seat belt retractor
for the passenger seat, the passenger seat
must be in the most backward position. The
seat belt can again be used in the usual
manner. G
WARNING
Never release the seat belt buckle while the
vehicle
is in motion, since the special seat
belt retractor will be deactivated.
The use of infant or child restraints is
required by law in all 50 states, the
District of Columbia, the U.S. territories,
and all Canadian provinces and
territories.
Infants and small children should be seated
in an appropriate infant or child restraint
system properly secured in accordance
with the manufacturer’s instructions for the child restraint, that complies with U.S.
Federal

Motor Vehicle Safety Standards 213
and 225 and Canadian Motor Vehicle Safety
Standards 213, 213.1 and 213.2.
A statement by the child restraint
manufacturer of compliance with these
standards can be found on the instruction
label on the restraint and in the
instruction manual provided with the
restraint.
When using any infant restraint, toddler
restraint, or booster seat be sure to
carefully read and follow all
manufacturer’s instructions for
installation and use.
Please read and observe warning labels
affixed to the inside of the vehicle and to
infant or child restraints. G
WARNING
Children 12 years old and under must be
seated and properly secured in an
appropriately sized infant restraint,
toddler restraint, or booster seat
recommended

for the size and weight of the
child.
The infant or child restraint must be
properly secured with the vehicle’s seat
belt fully in accordance with the child seat
manufacturer’s instructions.
Occupants, especially children, should
never place their bodies or lean their
heads in the area of the door where the
head-thorax air bags (cabriolet), window
curtain air bags (coupé) and thorax-pelvis
air bags (coupé) inflates. This could result
in serious injuries or death should the
head-thorax air bags (cabriolet), window
curtain air bags (coupé) and thorax-pelvis
air bags (coupé) be triggered. Always sit as
upright as possible, properly use the seat
belt and use an appropriately sized infant
restraint, toddler restraint, or booster
seat recommended for the size and weight
of the child.
Children can be killed or seriously injured
by an inflating air bag. Note the following Occupant safety
43
>> Safety.
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