Due to its height, it may lessen front passenger legroom considerably. You’ll have the most issues with the car seat’s front to back dimensions when installed rear-facing. Tip: If you’re having issues with getting 3 to fit across, some parents suggested using seat belt installations for all the seats, since the placement of the LATCH anchors could make the fit too snug. It’s got one the narrowest profiles on the market and will fit 3 across in most mid to large-sized vehicles. Crotch buckle slots: 2.5, 5, and 7 inchesįor families who need 3 car seats in a row, this is where the Radian 3RXT truly shines.Lowest harness height (w/o insert): 8 inches.Width at widest point (shoulders): 16.5 inches.How big is the Diono Radian 3RXT and will it fit in your vehicle? Also, knowing when to stop using the lower anchors and other items can be difficult to remember, but thankfully, there is onboard storage for the manual so you can consult it when needed. The switch from forward to booster may be a toss-up depending on your child’s size. The seat best fits babies who can sit up on their own and kids in forward-facing mode.

This seat does not have an adjustable recline, which means infants with little to no head control may slump unless you have car seats that are very flat and level. The straps alone should fit at or below the shoulders in rear-facing mode. If you have the harness covers on, the straps may look snug, but can be deceiving. Newborns, on the other hand, may not fit snugly enough, as the lowest harness straps may not fit at or just below their shoulders. Their shoulders may hit the bottom of the headrest well before they’ve outgrown the size limits for the booster seat. Forward-facing children may very well outgrow the height of the harness straps and headrest well before the stated height limit. This is one area that the 3RXT could improve upon. Child’s shoulders should be at or above 4th harness strap slotģ5 pounds (rear-facing) & 40 pounds (forward-facing)

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