Apply weatherstrip adhesive GM P/N 12345096 or equivalent to the weatherstrip.
Install the door opening weatherstrip by
aligning the joint of the weatherstrip along the rearward portion of the door opening.
Once aligned, begin installing the weatherstrip at the top rear corner of the opening (1),
and pressing the weatherstrip until fully seated.
Finish installing the door opening weatherstrip
by pressing the weatherstrip into place in a counterclockwise direction around the
door opening.