Children's Hospital and Medical Center want to help parents protect their most precious cargo, their kids. During Child Passenger Safety Week experts are shedding light on the importance of properly installing car seats and making sure a child is the safest while in the car. Dad of two, Alex Harrington, is getting help putting his sons' car seats into his new truck. "Just trying to get acclimated to it," Harrington said. "I haven't had a truck before so I wanted to make sure I knew everything about it." The first car seat installed is for his oldest, a 6-year-old."The longer he can stay in a five-point harness the safer he will be," Amy Borg said. "They say about four out of five car seats are used incorrectly, whether that's the child not being buckled in correctly or the car seat not being buckled in the vehicle correctly." Amy Borg is Children's Hospital's child passenger safety specialist. She helps fit car seats in vehicles. Borg said putting their kids in a booster seat too early is one of the biggest mistakes parents make."Really seat belts are made for adults, they're not made for children," Borg said. "We want to make sure they're in a five-point harness as long as possible and when they do move to that booster seat, they're in a booster seat as long as possible before moving again to that adult seat belt." Borg said depending on a child's car seat manufacturer kids can stay in a five-point harness up to 80 pounds and a booster seat until they are 10 to 12-years-old. "Driving, for most of us, is the most dangerous thing we do and we do it every single day. So, keeping our kids, our most precious cargo safe is our goal," Borg said. Harrington agrees."We just want to make sure he's as safe for as long as possible," Harrington said. Harrington's second child is nearly 3 and Borg said a child that age should still be in a rear-facing car seat. "We're waiting for those bones in the neck to harden and strengthen," Borg said. "They're completely cradled when they are rear-facing so no part of their body is taking that impact from a car crash." Borg said generally car seats allow kids to stay rear-facing until they are 50 pounds."If they can be 3 or 4-years-old and stay rear-facing, they are so much safer that way," Borg said. Now, locked in and ready to hit the road, Harrington's driving with added peace of mind. "I feel way better now than I did before, for sure," Harrington said. As winter nears, Borg reminds parents to take off their child's bulky winter coats before buckling in to prevent dangerous gaps between the harness and your child. She recommends draping the coat over the child, putting it on your child backward, or having a blanket in the car. For more tips or facts on child car seats, click here.