Cadillac CTS 2011 Owner's Manual page 94

3-26 Seats and Restraints
Here is how to install a comfort
guide to the safety belt:
1. Pull the elastic cord out from
between the edge of the
seatback and the interior body to
remove the guide from its
storage clip.
2. Place the guide over the belt
and insert the two edges of the
belt into the slots of the guide.
3. Be sure that the belt is not
twisted and it lies flat. The
elastic cord must be under the
belt and the guide on top.