Although older passengers using seat belts can decide where they sit in a car, researchers point out that a child's seat is determined by where the child-restraint system is installed. For ease of access and keeping an eye on a baby, the most common spot for a baby's car seat is the rear passenger side.
http://www.webmd.com/parenting/baby/news/20080507/safest-spot-for-babys-car-seat
If you're installing a safety seat and not using LATCH, make sure the car's seat belt is threaded through the correct slots, and pull the belt as tight as possible so there's no slack. The car seat should move no more than an inch forward and backward or side-to-side on the belt path. Once you've buckled the belt, give it a yank to make sure it's locked. If your car is a pre-1996 model, chances are the lap and shoulder belts don't lock in place unless the car comes to a sudden stop.
https://www.babycenter.com/0_installing-a-car-seat_9458.bc
Tips for installing your seat successfully. Read your car seat and vehicle manuals to make sure you understand how to install the seat. If the information isn't clear, call the automaker, the safety seat manufacturer, or both. Or take a 30-minute workshop to make sure you get it right (see Getting more help, below).
https://www.babycenter.com/0_installing-a-car-seat_9458.bc
Car Seat. For the best protection, keep your baby in a rear-facing car seat for as long as possible – until at least 2 years old. You can find the exact height and weight limit of your car seat on the side or back label. Kids who ride in rear-facing seats have the best protection for the head, neck and spine.
https://www.safekids.org/tip/car-seat-tips
Adoniram 26/04/2013 at 19:27. PM. No more anecdotal advice: Final verdict is rear center seat. Simply put, it is the furthest seat from most of the angles your car is likely to be hit at in a crash. Impact is the single biggest killer/injuring factor in a car crash (yes I know, genius). So standoff distanct from the impacting object is the single most important factor outside of a secure restraint itself.
http://www.madeformums.com/forum/my-baby-was-born-in-mar-2012/where-to-put-the-car-seat/156237.html
Installing the Car Seat Base With a Seat Belt. 1  Read your car seat’s instruction manual and your vehicle’s owner manual. Pay close attention to the information about your vehicle’s seat belt system, and how to “lock” the seat belt. 2  Place the car seat base in the back seat of your vehicle.
https://www.safercar.gov/parents/CarSeats/How-To-Install-Infant-Car-Seat-Rear-Facing.htm?view=full
The results showed that the passenger side rear seat was the most popular position for the baby or child's car seat (41%) followed by the left (driver's side) rear seat (31%) and center seat (28%). Researchers also found use of the center position decreased as the child got older.
http://www.webmd.com/parenting/baby/news/20080507/safest-spot-for-babys-car-seat
These seats typically have weight and height limits for the rear-facing position that allow you to keep your child rear-facing longer. If a baby under 1 year old grows too tall or too heavy for an infant car seat, a car seat with a higher rear-facing size limit is strongly recommended.
https://www.safercar.gov/parents/CarSeats/How-To-Install-Infant-Car-Seat-Rear-Facing.htm?view=full
Fitting Your Child Correctly in the Car Seat. 1  Place your child in the car seat with the child's back flat against the car seat. 2  Place harness straps over the child’s shoulders. Harness straps should lie flat, not twisted, and be placed through the slots located at or below your child’s shoulders.
https://www.safercar.gov/parents/CarSeats/How-To-Install-Infant-Car-Seat-Rear-Facing.htm?view=full
Choose the Right Direction: Rear- or Forward-Facing. 1  For the best protection, keep your baby in a rear-facing car seat for as long as possible – until at least 2 years old. You can find the exact height and weight limit of your car seat on the side or back label.
https://www.safekids.org/tip/car-seat-tips
what side of the car should a car seat be on
A car seat should be on the passenger side rear seat side of the car. A car seat be on the passenger side rear seat.