Door panel tech tip.

[HO455]

The door panels in my Burban are covered with fabric and the bottom of the fabric would get wet when it rained. After disassembly I noticed the large amount of tape holding the fabric down (Photo #1) and I assumed that it was somehow catching water and channeling it to the bottom of the panel where it would collect. So I removed the tape, trimmed the fabric and glued it down to the panel. (Photo #2 only shows the bottom done)
After reinstalling I waited for the rains to come and prove my theory. Unfortunately when the rain started one side still was getting soggy. So I pulled it apart again and took a closer look and found the black seal cord was unglued from the door and sagging as the red line in the third photo shows. Once I glued it back in its groove and reassembled it the water stopped collecting in the fabric.
Those clever engineers at GM designed that seal/rubber cord on the door to catch water running down the inside of the door and channel it to one of the two oval holes (Blue arrow) just above the seal where it then would drain back to the inside of the door.
I like fixing water leaks!