You can totally use a pressure washer. Main thing is how much pressure. If you can touch the water and it not hurt you, it’s safe as long as you don’t go close to it. About a foot or so is as close as I’m comfortable. Same for pressure washing the paint. Too much pressure and you know the rest
Don't use the same product on the fabric top as you use on the body. Don't high pressure clean. Don't use orbital power tools for no good reason. In short, wash it according to the manual, common sense and show a little sympathy. I understand that a professional detailer will have little time for such things, but am I going to put my baby into the hands of a professional detailer? Never.
A buddy of mine is a professional detailer and does the full ceramic finish among other treatments and almost never uses orbital tools because it's a great way to ruin the finish.
