Lexus ES-300 2001 Manual page 164

COMFORT ADJUSTMENT
Front seat belt pretensioners
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The driver and front passenger 's seat belt
pretensioners are designed to be activated in
response to a severe frontal impact.
When the airbag sensor detects the shock of a severe
frontal impact, the front seat belts are quickly drawn
back in by the retractors so that the belts snugly restrain
the front seat occupants.
The front seat belt pretensioners are activated even with
no passenger in the front seat.
Collisions occurring at certain speeds and angles may
cause the seat belt pretensioners and SRS airbags not
to operate all together.
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