GMC Canyon Owner's Manual page 41

CAUTION:
{
A safety belt that is not properly worn may
not provide the protection needed in a
crash. The person wearing the belt could
be seriously injured. The shoulder belt
should go over the shoulder and across
the chest. These parts of the body are best
able to take belt restraining forces.
4. Buckle, position, and release the safety belt
as described in Rear Seat Passengers on
page 36. Make sure that the shoulder
belt crosses the shoulder.
To remove and store a comfort guide, squeeze
the belt edges together so that you can take
them out of the guide. Slide the guide back on its
storage clip located between the interior body
and the seatback.
41