Automatic Seat Belt Tensioners - Acura 2009 TL Owner's Manual

Additional Information About Your Seat Belts
To deactivate the lockable retractor,
unlatch the buckle and let the seat
belt fully retract. To refasten the
seat belt, pull it out only as far as
needed.
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Automatic Seat Belt Tensioners

For added protection, the front seat
belts are equipped with automatic
seat belt tensioners. When activated,
the tensioners immediately tighten
the belts to help hold the driver and
a front passenger in position.
The tensioners are designed to
activate in any collision severe
enough to cause the front airbags to
deploy.
If a side curtain airbag deploys
during a side impact, the tensioner
on that side of the vehicle will also
deploy.
The tensioners can also be activated
during a collision in which the front
airbags do not deploy . In this case, the
airbags would not be needed, but the
additional restraint could be helpful.
When the tensioners are activated,
the seat belts will remain tight until
they are unbuckled.