Toyota Trifold leak fix?

BLUF: how can I fix this leak that doesn't look like a hack job?

Background: I bought my 2020 Tundra that had a Toyota-branded trifold on it. That trifold broke and it was a fight to get the dealership to replace it (warranty issue). Well, they did, but this new one leaks badly, but not from the corners. It leaks from the folds. Picture attached. I don't feel like starting yet another struggle with the dealership given the difficulty and energy it took last time. So, what are my options? I figure I could caulk it from the inside, but then water might get trapped. I could caulk it on the outside, but that won't look very good.

Maybe there is an option that it was assembled properly and if I take it apart int he right spots I could fix it that way. I don't know. You all know more about these things than me, so what are your thoughts?

Thanks!

 

If it is leaking through the middle of the hinge I'd say faulty hinges, not an easy fix. If it is leaking at the sides I'd say faulty or mis-aligned seals, easier fix. Even the heaviest duty outdoor grade construction sealants I have used around the house have eventually hardened and pulled away from things and needed to be re-applied and those weren't on joints that flex constantly. If that's me and we’re not talking about a bad seal or an alignment issue I'd cut my losses and put something with the water resistance I'm looking for on the truck. The Rugged Liner I have on my Ford was only about 640, and it only lets an occasional trickle in at the corners under the harshest of conditions or through the tailgate in the carwash. I feel totally comfortable with valuables under it in a rain storm.