Why won't the rear door on my 2003 Taurus Wagon open?

The rear door on your 2003 Taurus Wagon may not open due to a few common issues, such as a malfunctioning door latch, a broken or stuck locking mechanism, or a problem with the door handle itself. It could also be caused by a misalignment of the door or internal components obstructing the door's movement. Inspecting the latch and handle for any visible damage or debris might help identify the problem. If you're unable to resolve it, consulting a mechanic may be necessary.