The 2025 Kia EV9 handles most of the car seat years, but the third-row booster is a real weak point at C. It does not fit three car seats across, in the captain's-chair configuration Cars.com tested.
Fit grades from Cars.com's Car Seat Check, conducted by certified child passenger safety technicians. Seat dimensions are the manufacturers' published figures for the products we carry. Which seats we recommend, and why, is our own editorial judgment, from the catalog we stock and fit in person in Sumner, WA.
Which car seats we would put in a 2025 Kia EV9
The picks above are chosen on width, which is what decides whether another seat or an adult fits beside them. The measured width and depth of every car seat we carry is published in one place, so you can check our reasoning against your own measurements.
The grades at a glance
| Test | Grade |
|---|---|
| LATCH | A |
| Infant seat | A |
| Rear-facing convertible | A |
| Forward-facing convertible | A |
| Booster, second row | A |
| LATCH, third row | A |
| Forward-facing convertible, third row | B |
| Booster, third row | C |
| Third-row entry | C |
Where the anchors are
Second row: two sets, partially exposed. Third row: two sets, exposed.
Two midway down the second-row seatback, clearly marked and easy to use. Two more a third of the way down the third-row seatback.
Installing an infant seat
Easy. Cars.com found the infant seat installed easily and fit well.
Installing a convertible
Installed well in the second row with good legroom.
An A in the second row, a B in the third.
Boosters and the buckle-yourself years
The second row is the highlight: buckles on tall stable stalks that kids should be able to manage independently, which is why it earned an A. The third row is a C, where the buckles sink into the cushions and are held in by straps, making them tricky for small hands to find.
The third row
The step-in is tall, and the GT-Line's power seat takes roughly nine seconds to fold. There is a small pass-through between the captain's chairs as a faster alternative.
Three car seats across
No. 2025 Kia EV9 does not take three car seats across. If a third seat is coming, the deciding factor is whether the second row is a bench or captain's chairs, not the size of the vehicle. Our three-across guide covers which vehicles do, and which seat combinations fit them.
Which strollers suit a large cargo area
Space is not your constraint. Buy the stroller that suits how you actually use it.
These are the strollers we would actually recommend for this vehicle, with their folded dimensions so you can sanity check against your own load floor.
| Stroller | Folded (L x W x H) | Price |
|---|---|---|
| Silver Cross Reef 2 Multi-Terrain Modular Stroller | 19.0" x 23.5" x 29.0" | $1,200 |
| Maxi-Cosi Fame Modular Stroller | 30.93" x 24.51" x 15.76" | $1,000 |
| Romer Tura Stroller | 38.5" x 18.5" x 22.25" | $950 |
| Bumbleride Era Full-Size Reversible Stroller | 31.5" x 24.0" x 13.0" | $949 |
| Veer Switch&Roll Stroller | 15.0" x 25.5" x 36.0" | $949 |
| UPPAbaby Vista V3 Stroller | 17.3" x 25.7" x 33.3" | $900 |
| Veer Switch&Jog | 19.0" x 27.0" x 35.0" | $899 |
| Bumbleride Indie All-Terrain Stroller | 31.5" x 24.5" x 13.0" | $799 |
Compare every stroller side by side.
Four things that apply whatever you drive
Lower anchors have a weight limit, and it is lower than most parents expect. NHTSA advises against using the lower anchors once the combined weight of your child and the car seat reaches 65 pounds. Your seat's label or manual gives the maximum child weight for lower-anchor use; where it does not, subtract the seat's own weight from 65. Past that point the seat belt install is the correct one, and it is no less safe.
Use the top tether on every forward-facing install. NHTSA recommends it whether the seat is installed with the lower anchors or the seat belt, as long as both the car seat manufacturer and the vehicle manufacturer permit it. Check your car seat's tether weight limit too, and stop using the tether once your child exceeds it even while they still fit the seat.
Do not borrow outboard lower anchors for the center seat. Unless your vehicle manual specifically says the center position may use the inner anchors from the two outboard positions, it may not. Where the center has no anchors of its own, install there with the seat belt.
Rear-facing for as long as the seat allows. Keep your child rear-facing until they reach the height or weight maximum of their convertible seat, not until a birthday. Our guides to how long to stay rear-facing, LATCH versus the seat belt and booster readiness cover each of these properly.
Not sure which seat is right yet? Our car seat finder narrows the catalog in six questions, and the comparison tool puts any two side by side.
Kia EV9 car seat questions
Does the 2025 Kia EV9 fit three car seats across?
No. The 2025 Kia EV9 does not fit three car seats across, in the captain's-chair configuration Cars.com tested, according to Cars.com's fit check.
Where are the LATCH anchors in the 2025 Kia EV9?
Second row: two sets, partially exposed. Third row: two sets, exposed.
Will a rear-facing car seat fit in the 2025 Kia EV9 without moving the front seat forward?
Installed well in the second row with good legroom.
Can kids buckle themselves in the 2025 Kia EV9?
The second row is the highlight: buckles on tall stable stalks that kids should be able to manage independently, which is why it earned an A. The third row is a C, where the buckles sink into the cushions and are held in by straps, making them tricky for small hands to find.
What is the narrowest car seat that fits the 2025 Kia EV9?
Of the seats we stock and can ship today, the Romer Juni Infant Car Seat with Versa Base is the narrowest at 16.9 inches wide. Width is the number that decides whether another seat or an adult fits beside it.
Which car seats fit best in the 2025 Kia EV9?
Romer Juni Infant Car Seat with Versa Base (16.9"), Romer Veni Convertible Car Seat (17.0"), UPPAbaby Alta V2 Booster Seat (17.5"). Each was chosen against what the fit check found in this vehicle. Several of these come up repeatedly across our guides, because they are the narrowest and shallowest seats we stock and those are the two dimensions most vehicles are short of. What changes between cars is which one we would reach for first, and why.
More car seat help: Car Seat Safety Guide · All buying guides
Educational information only. This guide is for general education. It is not professional, medical, legal, or safety advice, and it does not create any advisory or professional relationship between you and SugarBabies. You are responsible for the safe selection, installation, and use of any car seat.
How a car seat fits and installs depends on your exact vehicle (its model year, trim, and seating configuration) and your exact car seat model. The instructions that came with your car seat and your vehicle owner’s manual always control. If anything in this article ever conflicts with those instructions, or with current guidance from the National Highway Traffic Safety Administration (NHTSA), follow the manufacturer instructions, your vehicle manual, and NHTSA, not this article.
Vehicle fit grades are compiled from third-party sources, including independent car seat fit testing performed by Certified Child Passenger Safety Technicians. Product dimensions are the manufacturer’s published figures for the items we stock, and are the widest published measurement where more than one is given. Any combination total is simple arithmetic with no allowance for shell overlap, and is a shortlist to check rather than a guarantee of fit. Specifications, model years, configurations, pricing and stock change, and we do not guarantee the accuracy, completeness, or current status of any of it. This article does not replace a hands-on check by a Certified Child Passenger Safety Technician (CPST). If you are near Sumner, Washington, a fit check and install help come with every car seat we sell.
Which seats we recommend on a given vehicle is our own editorial judgment, formed from those published dimensions and those third-party fit findings. It is not the result of testing that seat in that vehicle, and we have not verified any combination of seats side by side in any vehicle on this page. Buckle position, belt-path interference between neighboring seats and recline angle all affect real-world fit and none of them are captured by a width measurement.
To the fullest extent permitted by applicable law, we disclaim all warranties, express or implied, including the implied warranties of merchantability and fitness for a particular purpose, and SugarBabies and its owners, employees, and affiliates are not liable for any direct, indirect, incidental, or consequential injury, loss, or damage arising from the use of or reliance on this article. Nothing in this disclaimer limits any liability that cannot be limited under Washington law. Some products we recommend and link to are sold by SugarBabies, and we make money when you buy them.