Pontiac Montana SV6 2007 Owner's Manual page 70

Third Row
For the second row seating positions, the top tether
anchors are located on the seatback, near the base
of each seat. Be sure to use an anchor located on
the same side of the vehicle as the seating position
where the child restraint will be placed.
70
i
(Top Tether Anchor):
Seating positions with
top tether anchors.
Each seating position
with lower anchors has
two labels, near the
crease between the
seatback and the seat
cushion, showing where
the anchors are located.
Second Row
For the center third row position, if your vehicle
has one, the top tether anchor is located on
the seatback, near the center of the third row
seating position. This anchor can accommodate
only one top tether.