How can caregivers best ensure that their child’s car seat fits properly?

To ensure that a child’s car seat fits properly, performing a test with the child secured in the seat is essential. This method allows caregivers to see firsthand how the car seat functions with their child in it and to verify that the harness system is appropriately adjusted for a snug fit. The correct harness positioning is crucial for maximizing safety, as it helps in energy absorption during a collision and prevents the child from slipping out of the seat.

When the child is in the car seat, caregivers can check for common indicators of a proper fit, such as whether the harness straps are at the correct height and whether they are snug against the child’s body. This practical test can reveal potential issues that may not be apparent through other means.

Other approaches, such as checking the seat after every trip, while valuable for maintaining safety, do not offer the same level of immediate feedback regarding the child's specific fit. Reading online reviews can provide helpful information about the car seat's general performance but does not substitute for actual hands-on testing. Similarly, while ensuring the harness is in good condition is important, indiscriminately replacing the harness every few months does not directly address the need for proper fit and adjustment in relation to the child's growth and changing needs.