2010 Lexus LX 570 Owners Manual - Page 203

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1-7. Safety information

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SRS airbag deployment conditions (SRS front airbags)

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The SRS front airbag will deploy in the event of an impact that exceeds the set

threshold level (the level of force corresponding to an approximately 12 - 18 mph

[20 - 30 km/h] frontal collision with a fixed wall that does not move or deform).

However, this threshold velocity will be considerably higher if the vehicle strikes

an object, such as a parked vehicle or sign pole, which can move or deform on

impact, or if the vehicle is involved in an underride collision (e.g. a collision in

which the front of the vehicle “underrides”, or goes under, the bed of a truck, etc.).

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It is possible that in some collisions where the forward deceleration of the vehi-

cle is very close to the designed threshold level, the SRS front airbags and the

seat belt pretensioners may not activate together.

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The SRS front passenger airbag will not activate if there is not a passenger sit-

ting in the front passenger seat. However, the front passenger airbag may

deploy if luggage is put in the seat or the seat belt is fastened, even if the seat is

unoccupied.

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SRS airbag deployment conditions (SRS side airbags and SRS curtain shield air-

bags)

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The SRS side airbags and SRS curtain shield airbags will deploy in the event of

an impact that exceeds the set threshold level (the level of force corresponding

to the impact force produced by an approximately 3300 lb. [1500 kg] vehicle

colliding with the vehicle cabin from a direction perpendicular to the vehicle ori-

entation at an approximately speed of 12 - 18 mph [20 - 30 km/h]).

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The SRS side airbag on the passenger seat will not activate if there is no passen-

ger sitting in the front passenger seat. However, the side airbag on the passen-

ger seat may deploy if luggage is put in the seat or the seat belt is fastened, even

if the seat is unoccupied.