Buick 2009 Enclave Owner's Manual page 26

1-22 Seats and Restraint System
Shoulder Belt Height Adjuster
The vehicle has a shoulder belt
height adjuster for the driver and
right front passenger seating
positions.
Adjust the height so that the shoulder
portion of the belt is centered on the
shoulder. The belt should be away
from the face and neck, but not
falling off of the shoulder. Improper
shoulder belt height adjustment
could reduce the effectiveness of
the safety belt in a crash.
To move it down, push down on the
button (A) and move the height
adjuster to the desired position.
You can move the height adjuster
up by pushing up on the shoulder
belt guide.
After the adjuster is set to the desired
position, try to move it down without
pushing the button to make sure it
has locked into position.
Safety Belt Pretensioners
This vehicle has safety belt
pretensioners for the front outboard
occupants. Although the safety
belt pretensioners cannot be seen,
they are part of the safety belt
assembly. They can help tighten
the safety belts during the early
stages of a moderate to severe
frontal, near frontal, or rear crash
if the threshold conditions for
pretensioner activation are met.
And, for vehicles with side impact
airbags, safety belt pretensioners
can help tighten the safety belts in
a side crash or a rollover event.
Pretensioners work only once. If the
pretensioners activate in a crash,
they will need to be replaced,
and probably other new parts for
the vehicle's safety belt system.
See Replacing Restraint System
Parts After a Crash on page 1-60.
Rear Safety Belt Comfort
Guides
Rear shoulder belt comfort guides
may provide added safety belt
comfort for older children who have
outgrown booster seats and for
some adults. When installed on a
shoulder belt, the comfort guide
positions the shoulder belt away
from the neck and head.
There is a guide for each outboard
passenger position in the second row
seat and all passenger positions in
the third row.