Down here in the misersble heat soaked texas I use the rear ac quite a bit. I dont use the third roww much but what i do is point the vents forward and up so it pushes air up front for the kids. When I got in my xk yesterday the tempgauge read 108. Wasn't that hot outside, but just sitting in the sun ya know. It was about 96. I can't wait to get stationed father north.