One problem related to electrical jack has been reported for the 2007 Toyota Prius. The most recently reported issues are listed below.
The cover to the back hatch latch has melted into a gooey black mass this makes it difficult (at best) to open the back hatch. There is no alternative internal method for opening the hatchback/trunk,. Since the spare tire and tire changing gear (jack, wrench, etc. ) are stored in the back, this is a serious safety hazard. This is an obvious defect in the material used for the latch cover - the deterioration of this part can in no way be attributable to neglect or abuse on the part of the driver/owner of the vehicle. Should be recalled and replaced by Toyota.