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To do this task, the head restraint must be adjusted so that its top is at least level with the top of the occupant’s ears.

In recent years, traffic safety professionals have attempted to change the nomenclature commonly used for this device. Originally it was referred to as a “headrest”. However, in recent years, this device has significantly reduced death and injury vehicle occupants sustain when involved in a rear-end collision.

The head restraint prevents the head and neck from being snapped backward during a rear-end collision.