Can a car drive by itself? Seda travel precautions Seda weather

I only drove from Chengdu to Seda last August. I went to Chengdu-Lixian-Marcand-Guanyin Bridge-Seda. The road conditions are very good. We are cars. Seda is plateau weather. When you go in August, you have to wear a down jacket in the morning. It's a little hot when the sun comes out at noon, so I can only wear light clothes for two years.