I'm curious about these "touchless" carwash places. I've observed a few in action, and they're not really "touchless". There are still 3 huge rotating brushes that contact the car, one on top and two for the sides. I'm not sure what the "brushes" are made of, but from afar they look like strips of soft plastics.
There is one near me, advertised as touch-less but in fact uses strips of cloth that contact the vehicle.
Here is one review: *NOT* a touchless car wash. Although their Google Maps entry says "Touchless Car Wash," you'll see that their sign actually says, "Touch-Less Car Wash." ...I guess that's their way of saying their car wash touches your car less than most. But come on. Spinning towels definitely touch the car. This is way more contact than the typical touchless car wash, which only sprays your car with soap, water, and air.
Here is the owner's reply: We have state of the art equipment that uses soft cloth that doesn't cause damage to your finish. We have staff on premise that could have addressed your concerns about our equipment prior to your car being washed. In the end, I hope your car was clean & shiny.
A true touchless car wash will use only cleaning agents and high pressure jets of water to clean the outside of the vehicle. It is these highly alkaine (pH above 13) cleaning agents that can permanently damage the black out finish on the window trim of the Tesla Model Y vehicle.
Tesla has updated the Tesla Model Y Owner's Manual re washing the Model Y; see page 173:
https://www.tesla.com/sites/default/files/model_y_owners_manual_north_america_en.pdf
If washing in an automatic car wash, use touchless car washes only. These car washes have no parts (brushes, etc.) that touch the surfaces of
Model Y. Some touchless car washes use caustic solutions that, over time, can cause discoloration of decorative exterior trim. Avoid exposure to soaps and chemicals above pH 13. If unsure, check the product label or ask the staff at the car wash. Damage caused by improper washing is not covered by the warranty.
Also, Tesla advises that you do not use hot water, detergents, or highly alkaline or caustic cleaning products, especially those containing hydroxide.