Hello! I am facing the same issue you reported 6 years ago regarding the prius A/C taking literally 45s to respond. Stays lit the auto mode, but nothing else comes on or responds to touch. After 45s it allows me to torn it on, but always at a default temp of 25°c. Did you ever find a solution for this issue? It’s been about 2 years since my ac started doing that and no one knows what the problem is. Thanks!
