Pretty unlikely, most of the vehicles would have been acquired third or fourth hand sans manuals - see link for details.
All that aside, myself and many people I've known for many years have a combined several hundred years experience with a wide variety of vehicles going back to the 1930s - the corrosion issues with the CyberTruck as described are unusual - few people expect birdshit to cause permanent marking unless it's washed off immediately - common experience dictates that washing it off once a month (or less often even) will do just fine.
I’m not talking about the cybertruck corrosion, I’m talking about the standard statements about paint care in manuals. I’m sure your extended network with its hundreds of years of experience has come across that.
Really? I don't blame them, no one reads that part of the manual. But it's basically word for word what's on Ford's manual. It's basically stuff that no one actually does though.
Here you go[0], again the notice is still common even if as you said it would be a disaster if the vehicule actually rusts without a crazy amount of cleaning that no one would actually do.
And this is likely not the stainless itself rusting but environmental contamination (rust from railings etc). I'm not saying that because of the vehicule, but based purely on how this grade of stainless usually behaves. Stainless can rust, but this is pretty fast and the stain is a bit weird. Unless Tesla lied about the stainless steel grade, which is another can of worms.
Now I'm a bit curious, I might ask the actual rust formation experts I work with to confirm (I work on non destructive testing devices which involves a lot of... rust haha. Though I'm not specialized in that specific type of detection). I might be wrong on this, but if if I am it would really be a huge blunder from Tesla.
I know that is in the manual of ever car and I know from experience that parking under trees etc isn't great for a car, but as I said, I've never had my car "rust" because of it and the cars I'm driving generally aren't considered to be "tuff trucks".
Oh I completely agree. If it turns out to be actual body rust, yes that's a disaster and them putting the notice in the manual doesn't make it any better.