Under the Frame Rails
WARNING: This page is about a different car, the 2009 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The floor jack pad must not contact the rocker panel to the outside of the frame rail reinforcements.
NOTE:
The floor jack pad must not contact the floor pan.
Position the floor jack pad as follows:
Under the frame rail reinforcements.