Apply GM P/N 12345097,
or the equivalent, into the channel on the weatherstrip.
Install the weatherstrip to the vehicle.
Start at the corners in order to align the door opening weatherstrip
to the door opening pinch-weld flange. When pressing the weatherstrip on
to the pinch-weld flange ensure that the weatherstrip does not pull away
at the corners.
Starting with the corners of the door opening, press the weatherstrip
on to the door opening pinch-weld flange.