Cadillac Escalade 2004 Escalade ESV Owner's Manual page 52

There is one guide for each passenger position in the
rear seats. Here is how to install a comfort guide
and use the safety belt:
Second Row Seat
1. For the second row, remove the guide from its
storage clip on the trim panel near the side of
the seatback or front the side of the center seat.
1-46
Third Row Seat
For the third row, remove the guide from its storage
clip on the side of the seatback.