Built in seats - a limited number of car models have this option. These fasteners improve your ability to securely attach your car safety seat to your vehicle's seat, keeping the car safety seat from sliding around, and improving your child's safety. Phasing in of the new fasteners began this fall, and will continue for three years. 5-point harnesses provide a more secure fit for infants. Both types of shield may provide some additional impact protection.
Overhead shields provide a limited playing surface but also take up lap-room in front of the child.
If your car has a passenger side airbag, never put an infant in a rear-facing seat in front of an airbag. Even in a front facing seat, an airbag designed to save the life of an adult can seriously injure or kill a child. Pull over if you need to. That way you can reduce the inevitable build-up of juice, milk or formula stains, cheerios and other types of crumbs. Cover metal and plastic car seat parts with a cloth when leaving the car in the hot sun.