I need to replace the rear door locking mechanism on BUICK Park Ave 2005. The problem is that the door won't open. How do I remove the door panel?

SOURCE: 2005 buick lacrosse

lock rod has probably come off from door lock, try to get inside panel off or have someone with slim jim try and reach the rod to unlock the door

SOURCE: Volvo s40 rear doors wont open inside or outside

There is a child safety switch on the rear latch assembly that prevents opening from the inside handle. This switch may be on. Check your owners manual for more info.

Bret
RepairPal.com

SOURCE: Remove right rear door panel 2003 Buick LaSabre

You'll need to remove screws that are by the door handle, arm rest, under door and side of door and then gently pull back on the panel as there will also be retaining clips attached and you don't want to break them. You'll need to lift the door panel upwards in order to get it off the window ledge. If needed, you can pull back the weather seal (can't reuse it, but it's not that important) and you will be able to access everything inside the door

SOURCE: how do i remove the rear passanger 2000buick lasabre door panel.

You'll need to remove screws that are by the door handle, arm rest, under door and side of door and then gently pull back on the panel as there will also be retaining clips attached and you don't want to break them. You'll need to lift the door panel upwards in order to get it off the window ledge. If needed, you can pull back the weather seal (can't reuse it, but it's not that important) and you will be able to access everything inside the door

SOURCE: The rear latch/handle on our

Here's how I repaired mine. Go inside and remove the plastic 2" square plastic cover. By pushing on the lever inside this area, the latch will release. Push on the door at the same time, when the latch is pushed. With the door open, remove all four screws from the plastic panel. Now pry carefully the big plastic panel off the door. There are plastic snaps holding this on, all around the edges. Now there is another metal cover over the latch mechanism under this panel. Remove this. You now can see into the latch area and put the handle back into the slot where it came out of. You'll see that the ends of the handle can be put back on the round bar, but to hold them in place, I attached 2 nylon ties on one end. You can also purchase a metal push on retainer from the local hardware store. Mine has been repaired for 8 months and had no trouble. Ford used no retainer on these handles and after prolonged use, they bend and the handle can be pulled off. A twenty minute job. Your wife can even do it.
Fred C