Have dealt with the wing mirror issue on the Supra (twice now). Gotta say the UK dealers are fairly clueless when it comes to the car and the customer service leaves much to be desired. Going in for the recall and wing mirror issue tomorrow so hoping it'll be a better experience.
So far I haven't had the issue resurface again (although it took a few months to show up in the first place). They didn't mention that the design has changed in any way but I'm hoping so.
This happened to me (I made a thread about it elsewhere). The mirrors aren't sealed properly against water. I had to take mine to a dealership and have the whole mirror unit replaced.
Yo yo everyone,
Just thought it's worth making everyone aware of a potential issue with the wing mirrors on the 2020 Supra. I'm in Europe but the issue probably exists in all models (not sure if it's been fixed in the 2021). Essentially, water can leak in via the mirror and cause the door...