Starting at the door bottom use a screwdriver or a flat blade screwto release the door trim panel retainers inster the screw driver between the door panel and the door and pry outwards.
How to take a 2003 buick century door panel off.
Start at the bottom once you get the panel retainers to pop loose pull outwards on the door panel.
Route the electrical connectors through the trim panel.
Remove the armrest pull cup screws.
Starting at the door bottom use the j 38778 to disengage the retainers from the door trim panel.
Align the trim panel to the door inner panel guiding the door handle through the trim panel.
Install the upper edge of the trim panel to the top.
Remove the power window switch.
Remove the cover in the armrest pull cup.
All door panels are the same look around for all visible screws and remove them then pry off the plastic pieces on the panel remove the tabs on the door panel lift the panel up and out remove the electrical connections to the panel and then you re there.