There are some engine controls that affect transmission shift points, such as the throttle position sensor. (yourmechanic.com)
The computer is tuned for more aggressive transmission shift points, and the transmission itself is built for firmer and harder shifts. (en.wikipedia.org)
Unlike some rivals, the SRX does not require premium gasoline, and the driver - selectable Eco mode is said to slightly improve efficiency by changing transmission shift points. (kbb.com)