Many of the updates are inside the cabin, which features a revised center stack and instrument panel. Toyota moves away from buttons and knobs in favor of a touchscreen infotainment system, while the HVAC controls have been slimmed down and simplified, sitting just below the screen. The instrument cluster changes from three round gauges to two with a digital display screen separating them, giving the interior a more modern feel. The outermost air vents have been redesigned and are now circular, while the outgoing model offered triangular vents.
Detection of variations in the relative velocities of the primary and secondary seismic waves – expressed as Vp/Vs – as they passed through a certain zone was the basis for predicting the 1973 Blue Mountain Lake (NY) and 1974 Riverside (CA) quake.  Although these predictions were informal and even trivial, their apparent success was seen as confirmation of both dilatancy and the existence of a preparatory process, leading to what were subsequently called "wildly over-optimistic statements"  that successful earthquake prediction "appears to be on the verge of practical reality."