Cadillac 2005 CTS - Manual (Page 383)

{ CAUTION:
A safety belt that is not properly routed
through the seat cushion or is twisted will not
provide the protection needed in a crash. If the
safety belt has not been routed through the
seat cushion at all, it will not be there to work
for the next passenger. The person sitting in
that position could be badly injured. After
reinstalling the seat cushion, always check to
be sure that the safety belts are properly
routed and are not twisted.
To reinstall the rear seat cushion, do the following:
1. Position the seat cushion so that you can route the
safety belts through the proper slots in the seat
cushion.
2. Slide the rear of the cushion up and under the
seatback so the rear-locating guides hook into
the wire loops on the back frame.
3. With the seat cushion lowered, push rearward and
then press down on the seat cushion until the seat
cushion snaps into place.
4. Push and pull on the seat cushion to make sure it
is locked into place.
5. Check to make sure the safety belts are properly
routed and that no portion of any safety belt is
trapped under the seat cushion.
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