Cadillac 2007 SRX Owner's Manual page 58

There are two top tether anchors located on the
side of the wheel well in the rear cargo area. There
is another top tether anchor in the center of the
rear cargo area. 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.
58
Do not secure a child restraint in the right front
passenger's position or any third row position if a
national or local law requires that the top tether
be attached, or if the instructions that come
with the child restraint say that the top tether must
be attached. There is no place to attach the top
tether in this position.
Accident statistics show that children are safer if
they are restrained in the rear rather than the front
seat. See Where to Put the Restraint on page 53
for additional information.