CHEVROLET 2009 Suburban - Manual (Page 55)

There is one guide for each outside passenger position
in the second row seat and the third row, if the vehicle
has one. Here is how to install a comfort guide to the
safety belt:
1. For the second row, remove the guide from its
storage clip on the interior body.
If your vehicle has a third row, remove the guide
from its storage pocket on the side of the seat.
Second Row
Third Row
1-49