A correctly installed car seat cuts a toddler’s crash death risk by 54 percent, NHTSA says

A correctly installed car seat cuts a toddler’s risk of dying in a crash by 54%, and a rear-facing seat cuts an infant’s risk by 71%, according to the National Highway Traffic Safety Administration. The agency published those figures on September 21, 2026, timed to Child Passenger Safety Week, which runs September 20 through 26 and ends with National Seat Check Saturday. In 2024, the same release states, 160,850 children age 14 and under were injured in traffic crashes and 677 were killed.

NHTSA Administrator Jonathan Morrison said “the right car seat, properly installed, is the best tool [available] to protect a child in a crash,” and said the agency’s broader goal this year is to simplify how parents pick between the four seat types a child moves through between birth and age 12. The emphasis on installation, rather than on which seat a family buys, follows directly from NHTSA’s own numbers: the 54% and 71% reductions are not a property of any particular product on a shelf, but of whether that product ends up secured the way its manufacturer and NHTSA both specify.

Half of All Car Seats Are Installed Wrong

The 54% and 71% figures only apply when a seat is actually installed correctly, and NHTSA’s own estimate is that approximately 50% of all car seats are installed incorrectly. A separate, older national study cited by the Centers for Disease Control and Prevention put the misuse rate at 46% in 2011, rising to 59% once booster seats were excluded from the count, with loose installation, incorrect harness positioning and the wrong recline angle among the most common errors.

More recent, smaller regional studies have found misuse rates exceeding 85% in some areas, the CDC notes, though those studies cover fewer families than the earlier national estimate and are not directly comparable to it. The pattern the CDC’s data show is consistent regardless of the exact number: children are far more likely to ride unrestrained, or restrained incorrectly, when the adult driving is unbelted too, with CDC recording that 68% of child fatalities involved an unrestrained driver as well as an unrestrained child.

Four Seat Types, One Rule About Fit

NHTSA’s guidance sorts car seats into four categories that track a child’s age and size rather than a fixed birthday: rear-facing seats for infants and some toddlers, forward-facing seats once a child outgrows rear-facing limits, belt-positioning booster seats for early school-age children, and the vehicle’s own seat belt once a child is big enough to use it correctly alone. The agency’s guidance on choosing and installing a seat stresses using either the vehicle’s lower anchors or its seat belt to secure a seat, never both together, since combining the two systems can itself cause a poor installation.

The stakes of getting that installation right show up in NHTSA’s broader numbers for the same year: car seats saved an estimated 325 children under age 5 in a single year, while 39% of the children killed in 2024 crashes were not properly restrained at all, according to the agency’s Child Passenger Safety Week materials. NHTSA also tells parents to keep a child in each stage as long as the child still fits within that seat’s height and weight limits, rather than moving up a stage early simply because the child has reached a particular birthday, since an oversized seat for a child’s actual size can undo much of the protection a correctly matched one provides.

Registering a seat with its manufacturer is the other habit NHTSA folds into the same guidance, since it is the only way most families learn about a recall on a seat they already own and are using every day. The agency directs owners who suspect a defect, rather than simple misuse, to report it directly to NHTSA so the complaint becomes part of the record regulators use to decide whether a wider recall is warranted.

A Week Built Around One Saturday

Child Passenger Safety Week is not just an awareness slogan; NHTSA uses it to push families toward its Car Seat Inspection locator and Car Seat Finder tools before the week’s capstone event. On an average day in 2024, the agency’s data show, two children age 14 and under were killed and 349 more injured in passenger-vehicle crashes — the daily backdrop against which National Seat Check Saturday, September 26, 2026, is scheduled.

Free inspections are the mechanism NHTSA is counting on to close the roughly 50% misinstallation gap. Certified technicians at Safe Kids Worldwide’s network of inspection stations, based in fire departments, police stations, hospitals and community health centers nationwide, check installation free of charge in most cases and now offer virtual appointments at some locations; Florida alone lists more than 50 stations, an indication of how dense the network has become in higher-population states even though NHTSA does not publish one national total.

CDC’s tracking shows the underlying risk is not spread evenly. Children in rural counties died in traffic crashes at a rate of 4.5 per 100,000 in the years the agency studied, compared with 0.9 per 100,000 in urban counties — a gap the CDC ties partly to lower seat-belt and car-seat use in those communities rather than to road design alone, and one the agency has not reported closing even as national misuse estimates have improved over time.

This article was produced with the assistance of AI and reviewed by Morning Overview editors prior to publication.

More from Morning Overview