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.