Chevrolet VENTURE 2005 Owner's Manual page 251

Third Row
An anchor bar for a top strap is located at the rear of
the seat cushion for each second and third row outboard
seating position, and for the center position of the
second row.
Third Row (Stowable Seat)
The anchor bar for the stowable bench seat is located
on the passenger's side of the crossbar. Use the center
seating position to use the anchor bar properly. If the
convenience center is in the vehicle, you must lift
the tray sill to use the anchor.
Do not secure a child restraint with a top strap in the
right front passenger's position or at the third row
driver's side position (vehicles with a full bench seat) if
a national or local law requires that the top strap be
anchored, or if the instructions that come with the child
restraint say that the top strap must be anchored.
There is no place to anchor the top strap in this position.
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