Simulated crash tests show the importance of proper child restraint installation. Most parents don’t realize they need to use the top tethers for forward-facing child restraints. Attaching the top tether keeps the restraint from pitching too far forward in a crash putting children at risk of head or neck injuries. Tethers are key to getting the most protection from a child restraint.
For information on vehicle seat designs associated with correct child restraint installation watch https://www.youtube.com/watch?v=u_GD1rAKRDk