In a Lexus LS 600h, going on sale at the beginning of October, there is a lot of technology in the hybrid powertrain under the hood. But, a new standard feature, the Pre-Crash Safety (PCS) system, will up the ante by figuring out if the driver is paying attention, calculating if a crash is about to occur, and then do something about it.

in the images above you can get an idea what the system does. The little box on top of the steering wheel can see your face, and it judges if you're looking at the road ahead or not. If you're not, it buzzes at you. Cameras on the outside of the car can guess when an accident is about to happen, and if so, the headrest moves forward to help stop whiplash. PCS will soon be standard in the LS 600h, the LS 600h L and the LS 460.

You can read Lexus' comforting explanation of the system after the jump.

[Source: Lexus]