How do I know if my child is too tall for their Radian® 3QXT® SafePlus™ (Radian® 3QXT®) car seat?

In rear-facing installations, the top of the child's head must be 3.8 cm below the top of the shell.

In both forward-facing and booster installations, the child's ears must be below the top of the car seat shell. In forward-facing installations, the harness straps must be above the shoulders.

Please watch the video below from our CPST specialist on when is the right time to transition to a booster seat: