The other day I went to put the bike rack on the GV, and found the padlock on the spare tire cover was completely seized up with corrosion. It took several days of playing around with things like penetrating oil and a hammer to get it open. Turns out it is also full of grit. As you can see by how grime accumulates on the back end of our cars in winter, this is about as hostile an environment one can imagine for a padlock.
Obviously a spare is of no use if you can't get at it. So no lock is better than one you can't open. Maybe I'll check out locks designed for marine use. Still, they have no reason to be protected against dirt. And due to the small fitting, it has to be a very small lock. An alternative is to build some sort of cable lock arrangement inside the cover. Sounds like a major pia. Maybe I'll just wire the hasp shut and carry a pair of pliers.
Anyone have any good ideas for this problem?