WARNING: This page is about a different car, the 2011 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Rear Door Opening Weatherstrip
Courtesy of GENERAL MOTORS COMPANY
Rear Door Opening Weatherstrip Replacement
Callout
Component Name
1
Rear Door Opening Weatherstrip TIP:
Pull the weatherstrip from the door opening flange.