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Car shut down after car wash, Tesla says oil pump seal

I took our older RWD LR model 3 through a no-touch car wash and about 2 miles later, it flashed a bunch of errors and then refused to move again once I stopped. Then after about 30 minutes, it started working again and was fine all weekend. I drove it to service and Tesla says, "Upon diagnoses, we have found that the oil pump seal is defective."

Not a big deal, but I wonder if that isn't the real problem? I can't find any info, but I don't think the oil pump is on the high voltage supply. I assumed the problem would be a high voltage electrical connection that wasn't fully sealed. Once it got wet, there'd be some current leak that the car would sense and shut down. I don't think 12V would have much measurable leakage current with water ingress, so I wouldn't have expected the problem to be on the 12V side.

Any thoughts?
The oil pump is definitely 12V. I wouldn't think water ingress into the pump or connector would be an issue that quickly. Based on the few people that had the pump fail, it didn't throw a bunch of codes and the car was drive-able. It wouldn't make a lot of sense the pump would seal a leakage path to HV. Maybe they're being slightly vague since the real issue is a bad look?

Luckily at least, this doesn't appear to be a common thing. Presumably it should be fixed when it leaves.
So what is it lubricating? It's not like Tesla has a tranny ...

Its lubricating the differential and reduction drive, as well as providing cooling for the motor assembly. As far as I know, every production EV has oil in the reduction box. Model 3 happens to have a pump and runs it through a filter, as well as use it to pull heat out of the motor. It’s quite possible the oil may never need to be changed, but it’s vitally critical to the proper operation.
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