Buick 2007 LaCrosse - Manual (Page 70)

If your vehicle has a roof-mounted side impact
airbag for the right front passenger and the person
directly behind that passenger, it is located in
the ceiling above the side windows.
{ CAUTION:
If something is between an occupant
and an airbag, the bag might not inflate
properly or it might force the object into
that person causing severe injury or even
death. The path of an inflating airbag must
be kept clear. Do not put anything between
an occupant and an airbag, and do not
attach or put anything on the steering
wheel hub or on or near any other airbag
covering. And, if your vehicle has
roof-mounted side impact airbags, never
secure anything to the roof of your vehicle
by routing the rope or tie down through any
door or window opening. If you do, the path
of an inflating side impact airbag will be
blocked. The path of an inflating airbag
must be kept clear.
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