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I took my 2016 Prius 3 through a brushless car wash this afternoon, and about halfway through, the warning light came on and the car displayed "Hybrid System Malfunction // Visit Your Dealer". Has anyone had anything like this happen to them? The car seemed to drive normally from there back to home, so the system is evidently still working - just getting the message on the screen every few seconds.

I have a suspicion as to what it might be, though, and at some point I'm going to try a test to see if it's what I think it is. I recall having shifted into Park and leaving my foot on the brake the whole time I was in the wash (which was about 5 minutes tops). I did that because the Pink Elephant system hates it when the car moves while the wash is in progress. Now, Toyota Corporate sent me a notice a couple weeks back saying that there's a known issue with the brake assembly that might cause a warning light to appear (they emphasized that it's not a safety issue). This came in as an "extended warranty" - after the standard warranty runs out, they would extend the warranty on this particular condition until I hit 150,000 miles.

 So I wonder if this was that condition. If so, I should be able to repro it by just sitting in Park with my foot on the brake for a few minutes, and that would rule out the car wash as being a factor. I think that's the only time I've sat in one spot with the brake down (as opposed to the parking brake) for more than a minute.

Toyota covers the 2016 Prius with a three-year/36,000-mile bumper-to-bumper warranty and a five-year/60,000-mile powertrain warranty. The Prius’ hybrid-related components are covered for eight years or 100,000 miles.

Ich kenn zwar nicht alle Details der US-Garantie von Toyota, aber wenn man berücksichtigt, das die Hybrid-Komponenten für 100.000 Meilen unter Garantie sind, und das 161.000 km entspricht (bei der erweiterten Garantie sogar 240.000 km), scheint mir das doch eine extrem gute Garantieleistung zu sein?