Water ingress causing a short circuit of the opening mechanism/switch. Investigate seal/s and/or switches to ensure they are not compromised and remain dry. Alternatively, move to a drier climate. You could also interpret this as a safety device for flood areas - at least that's what I would tell my neighbours and friends...
11/06 4.4i Stirling Grey over Black
66 Valiant slant 6 torqueflite (258K miles original)
68 Valiant slant 6 torqueflite (196K miles original)
71 Dodge Challenger 340 (68K miles original)
86 Dodge Ram 318 auto (86K miles original) on LPG/gas
93 Toyota Landcruiser turbo diesel (the workhorse)
08 Golf tdi six speed manual (the fun economy buzz-box)
09 Chrysler 300C SRT-8 (the thrill machine)
Assorted other work vehicles and farm machines...