NHTSA Complaint #11579882 — 2019 LEXUS RX

AC doesn't work properly. We had several incidences when we were driving from Houston (TX) to Dallas (TX) in hot summer. The AC worked well when we left Houston, however it stopped blowing cool air when we were in the middle of nowhere on highway. The air became warmer and warmer, and there isn't anyway that we can adjust the air volume nor to cool it down. We took our car to Lexus dealer for diagnosis and nothing unusual was detected. The dealer suspect the cool air clogged in condenser that blocked cool air from entering the cabin. This is truly a safety concerns to all Lexus owners. When we drive on highway, in the middle of nowhere in hot summer, the car cannot provide a comfortable environment to driver and passengers, especially for babies or older passengers. It's a safety design flaw with Lexus RX350.