2018 Kia Optima — footwell gets wet only after heavy rain

I'd keep this practical. Verify the cheap/easy branch on the 2018 Kia Optima before a big repair or a big spend. Then you'll know the next fork. This is from a 2018 Kia Optima in Austin. That's the whole play. Your commute and mine probably aren't the same, but the test still applies. Doing the boring step first on purpose.

Write down what you already tried. A second data point from another 2018 Kia Optima owner helps more than a generic diagnosis. I'd do that before spending real money. That's the whole play. I'd sleep better after that step, even if it finds nothing. If this is nothing, great. I want that in data.

Write down what you already tried. A second data point from another 2018 Kia Optima owner helps more than a generic diagnosis. That's where I'd start. Post the numbers (or the code) and people can get more specific. I'd sleep better after that step, even if it finds nothing. Might be overthinking it, but I'd rather overthink than overspend.

Following up on footwell gets wet only after heavy rain: still happening, but I have better notes now. I'm in no rush to be a hero on it.

Owner notes beat generic advice here. On the 2018 Kia Optima in Austin, I'd fix the thing you'll notice every day before chasing spec-sheet extras. Then you'll know the next fork. On “footwell gets wet only after heavy rain,” that was the fork that mattered for me. That's the sequence I'd use. I'd rather look cautious in this thread than stuck later.