Occupant Classification System (Ocs) - SMART fortwo coupe Operator's Manual

Occupant safety
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 unfas
tened 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)
( page 60).
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.
60
>> Safety.
The passenger air bag will only be deployed if
• the system, based on OCS weight sensor
readings, senses that the passenger seat is
occupied and the 57 indicator
lamp is not lit ( page 64).
• 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.
P91.60 3287 31
1 Driver front air bag
2
Passenger front air bag
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.
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The system does not deactivate the head
thorax air bag, the seat Emergency Tension
ing Devices, and the seat belt force limiters.
Occupants must sit properly belted in a posi
tion that is as upright as possible with their
back against the seat backrest and feet on the
floor to be correctly classified. If the occu
pant's weight is transferred to another object
in the vehicle (e.g. by leaning on armrests),
the OCS may not be able to properly approxi
mate the occupant's weight category.