Mercedes-Benz GLK 300 4MATIC 2012 Owner's Manual page 56

belt warning lamp lights up for six seconds
after the engine is started. It then goes out if
the driver and the front passenger have fas-
tened their seat belts.
i
For more information on the 7 seat
belt warning lamp, see "Indicator and warn-
ing lamps in the instrument cluster, seat
belt" ( page 284).
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Rear seat belt status indicator
Rear seat belt status indicator (illustrated example:
vehicle with 12-button multifunction steering
wheel)
The rear-compartment seat belt status indi-
cator tells you if the rear passengers have
their seat belts fastened. The rear-compart-
ment seat belt status indicator indicates the
rear seat on which the belt is fastened. In the
example, the passengers on the left and right
rear seats have their seat belts fastened.
The rear-compartment seat belt status indi-
cator appears in the multifunction display for
around 30 seconds if:
you drive off and reach a speed of approx-
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imately 10 km/h.
the rear passengers fasten or unfasten
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their seat belts while the vehicle is in
motion.
someone gets in or out of the vehicle and
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the vehicle drives off again.
You can also cancel the rear seat belt status
indicator immediately (
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The status indicator for the rear-compart-
ment seat belts is only available for certain
countries.
page 245).
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Occupant safety
Belt tensioners, belt force limiters
The front seat belts and the outer seat belts
in the rear are equipped with belt tensioners.
The belt tensioners tighten the seat belts in
an accident, pulling them close against the
body.
Belt tensioners do not correct incorrect seat
positions or incorrectly fastened seat belts.
Belt tensioners do not pull vehicle occupants
back towards the backrest.
If the seat belt is also fitted with a belt force
limiter and this is triggered, the force exerted
by the seat belt on the vehicle occupant is
reduced.
The belt force limiters on the front seats are
synchronised with the front airbags. They
take on a part of the deceleration force,
resulting in the force exerted on the occupant
being distributed over a greater area.
The belt tensioners can only be activated
when:
the ignition is switched on.
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the restraint systems are operational; see
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"SRS warning lamp" (
the belt tongue is engaged in the buckle on
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each of the three-point seat belts in front.
The belt tensioners on the outside seats in the
rear compartment are triggered independ-
ently of the lock status of the seat belts.
The belt tensioners are triggered depending
on the type and severity of an accident:
in certain situations where the vehicle over-
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turns and the system determines that it can
provide additional protection
if, in the event of a head-on or rear-end col-
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lision, the vehicle decelerates or acceler-
ates rapidly in a longitudinal direction dur-
ing the initial stages of the impact
if, in the event of a side impact, on the side
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opposite the impact the vehicle deceler-
ates or accelerates rapidly in a lateral direc-
tion
If the airbags are deployed, you will hear a
bang, and a small amount of powder may also
page 43).
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