Safety Features

Safety Features

1. General

The impact absorbing structure of the Sienna provides a body and frame construction that can effectively absorb the energy of impact in the event of a collision.

Also, an excellent occupant protection performance has been realized by adopting a frame construction that effectively absorbs and disperses the impact energy, and a strong body construction has been made possible through the use of the optimally allocated frame materials around the cabin.

2. Impact Absorbing Structure for Frontal and Under Collision





^ The front end of the front side member has adopted an impact absorbing structure in order to efficiently disperse the energy of a frontal collision to the front pillar and the under members.

^ The cabin, which consists of an impact absorbing front body and members that sustain minimal longitudinal and transversal fractures, helps reduce injury to the occupants.

3. Impact Absorbing Structure for Side Collision





^ Impact energy of a side collision directed to the cabin area is dispersed throughout the body via pillar reinforcements, side impact protection beams, outer reinforcements, floor cross members, etc.

^ This dispersion of energy keeps the energy directed to the cabin to minimum level. As a result, the deformation of the cabin is minimized.





^ A differential thickness joining method, in which materials with different thickness are used depending on the location, has been adopted in the inner center pillar and the outer center pillar reinforcement. As a result, the proper strength and weight reduction have been achieved.

^ A belt line reinforcement panel has been provided along the belt line of the center pillar.

^ The differential thickness joining of the center pillar and the belt line reinforcement panel control the deformation of the center pillar during a side collision and minimize the amount of intrusion of the body into the cabin.





Impact absorbing pads are provided in the locations corresponding to the hips of the occupants in order to absorb the side impact energy.

4. Head Impact Protection





^ A head impact protection structure has been adopted. With this type of construction, if the occupant's head hits against the roof side rail and pillar in reaction to a collision, the inner of the roof side rail and pillars collapses to help reduce the impact.

^ At the roof side rear and the rear pillar, the rear cooler ducts serve concurrently as impact absorbing materials.