Tailgate problems of the 2013 Cadillac SRX

Moon roof drainage system is poorly designed. Drainage hose runs alongside moon roof then inside car to the rear tailgate area, directly over lift gate fuse and module. On numerous occasions it has backed up, leaked into left rear (driver¿s side) floor causing carpet to get wet. It tends to leak in rear tailgate area over the fuse panel and lift gate module shorting out the power or automatic tailgate feature. This has been an issue for the same problem more than once, including replacing the fuses and lift gate module. This problem is the same whether the car is stationary or moving. Other methods have been suggested and tried to eliminate wetness and odor from windows open, damp rid, even wet/dry vacuum. Now that my car is out of warranty, the repair bill is mine to settle for a known chronic problem and poor design.