Put on gloves to protect your hands.
When prying with a flat-tip screwdriver, wrap it with protective tape, and apply protective tape around the related parts, to prevent damage.
Use a plastic panel removal tool to remove interior trim pieces to protect from marring the surface.
Take care not to bend or scratch the trim and panels.
Fold the rear seat back assembly [LH].
Remove the rear back armrest cap (A).
After loosening the mounting bolt, then remove the rear back armerst (B).
Install in the reverse order of removal.
Replace any damaged clips.