Interior front cabin of a 2020 Toyota Corolla

What is Toyota WIL (Whiplash Injury Lessening)?

Toyota Whiplash Injury Lessening (WIL) Info and Importance

It’s no secret that Toyota is obsessed with safety technology; as a result, the venerable automaker is continually, restlessly improving this aspect of their vehicles. One acronym you may have come across when learning about Toyota safety is “WIL.” In this context, these letters stand for “Whiplash Injury Lessening.” What is Toyota Whiplash Injury Lessening, and how does it work?

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As the name suggests, Toyota Whiplash Injury Lessening helps reduce the risk of whiplash neck injuries in lower speed rear-end collisions. It does this by providing ample support to the passenger’s head and chest simultaneously. This innovation has been shown to result in fewer injuries.

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What causes whiplash?

Whiplash occurs when a rear-end collision prompts the head and torso of an individual to suddenly move in opposite directions.

How common is whiplash?

Whiplash is one of the most common automotive incident-related injuries. In Japan, approximately 53% of injuries from car accidents are due to rear-end collisions. Approximately 90% of these are neck injuries, of which whiplash is one.

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How does the Toyota WIL seat work?

To combat whiplash, Toyota decided to take a fresh look at how a typical vehicle’s seatback frame and headrest are positioned, and to improve on this design. They were able to create a seat that the back of the human sinks into when the vehicle is hit. Because of this, the head and body are able to both be simultaneously supported. Toyota also increased the rigidity of the seat frame.

What other safety engineering has Toyota implemented in its vehicles?

In addition to the WIL seats, Toyota introduced a feature they call the Active Headrest. This gizmo was put into play back in 2007. It reduces stress on the neck during low-speed rear impacts.

The WIL seat and Active Headrest join the Toyota suite of innovative safety technology that includes omni-directional compatibility and pedestrian injury-lessening vehicle bodies. It’s all part of the effort for overall safety, which is a top priority for the automaker.

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