Steering Axis Inclination (S.A.I.)
WARNING: This page is about a different car, the 2004 Chrysler Pacifica. However, it is still accessible from the selected car via links, so may be relevant.
Steering axis inclination is angle between a true vertical line starting at center of tire at road contact point and a line drawn through center of upper ball joint (or strut) and lower ball joint. See Fig 1 . S.A.I. is built into vehicle and is not an adjustable angle. If S.A.I. is not within specifications, a bent or damaged suspension component may be cause.