Trunk Leak on 2000 Bonneville SSEi
I own a 2000 Bonneville SSEi and previously owned a 2000 Bonneville SLE. Both vehicles collect water in the spare tire storage area. I have removed the trunk liner and find that water is accumulating behind the tail light lense and drips into the trunk when I open it. I have removed and sealed the lense w/silicone caulk. I've also removed the rear spoiler and sealed each "bolt" with silicone caulk as well. No help. I'm clueless as to the cause. The trunk seal is below the area where the leak occurs. . . . so I'm certain that replacing it won't help.
To top it off, my neighbor just purchased a 2004 Gran Prix and has the same problem!.