Selection Control
WARNING: This page is about a different car, the 2008 Jeep Patriot and 2008 Jeep Compass. However, it is still accessible from the selected car via links, so may be relevant.
When selecting between N (P) and D(R) position, the optimum operating pressure is set on the basis of the throttle position, the engine speed, and the secondary pulley (output) revolution speed to lessen the select shock.