NHTSA Complaint #11502294 — 2021 SUBARU FORESTER

My brake rotors warped at 6900 miles. They were resurfaced and covered under warranty. The shop indicated that because I washed my wheels in the course of a 4 minute car wash 3 blocks from my house that I caused them to warp. The symptoms included very rusty view from eye level and shuddering on braking. This was the front axle. Today I took car in at 42000 miles rotors and pads have to be replaced front and back rotors surfaced and pads replaced. My car was aok but sat for 2 weeks after Xmas and upon driving again they instantly suffered on braking and were very rusty. I am not a hard or fast braker. I do occasionally tow a 4x6 small wood box trailer that does not have its own brakes.. way too old… steel frame wood sides. It sounds silmilar to the issue the ascent has. My concern is obviously safety first and second cost to replace every 20-30k miles adds $1200 to $1800 and it should not be that way. Ever car prior to this has gone at least 120k before needing any brake replacement parts. Is it the ceramic pads leaving material on the rotors, not rotor warp? Is it improper tightening of parts per specs? Is it hub warp? Lugs overtightened? And how can I and many others (google it) avoid this safety issue and the costs??