
Yes, a Mazda CX-5 can fit three car seats, but it is a very tight squeeze and requires careful planning. The key challenge is the vehicle’s interior width. While the CX-5's rear seat is technically wide enough for three seats side-by-side, the shape of the individual seats and the pronounced rear wheel arches significantly limit usable space. Success depends heavily on the specific type and model of car seats you choose. Slim-profile or specially designed narrow car seats are almost a necessity for this to work practically.
The most critical step is to check the LATCH system anchors. The CX-5 has two sets of lower LATCH anchors in the outboard (window-side) seating positions. The middle seat must rely on the vehicle's seat belt for installation. This is a common and safe practice, but it means you'll be doing a seat belt installation for the center seat.
Practical Considerations for Installation:
Here is a comparison of the CX-5's rear seat dimensions with a key competitor often considered for three-across setups:
| Dimension | Mazda CX-5 | Honda CR-V | Notes |
|---|---|---|---|
| Rear Hip Room (inches) | 55.3 | 55.5 | Measured at the widest point of the cabin; the CR-V has a flatter bench. |
| LATCH Anchor Sets | 2 | 2 | Both have two full sets in the outboard seats. |
| Three-Across Feasibility | Difficult, requires specific seats | Challenging, but slightly easier | The CR-V's flatter seat design often provides more usable space. |
Ultimately, while it's physically possible, fitting three car seats in a Mazda CX-5 is not ideal for daily use. If you have three children in car seats, a three-row SUV or a minivan with a wider cabin is a more comfortable and practical long-term solution. You should absolutely take your car seats to the dealership and attempt a test installation before making a purchase decision.

We tried it with our CX-5 when we had our third. It worked, but just barely. We had to get two of those super-slim Diono seats for the sides and an infant bucket seat in the middle. Getting the kids buckled was a puzzle every time—my knuckles were always scraped. It’s a temporary fix. We lasted about a year before we admitted defeat and upgraded to a minivan. The CX-5 is a fantastic car, but it’s really built for two kids comfortably.

From a technical standpoint, the feasibility hinges on the car seats' combined width. The CX-5's rear hip room is approximately 55.3 inches. Measure the width of your specific car seats; their total must be less than this. The real-world constraint is the seat contours, not the raw number. You will likely need to use the seat belt for the center installation, as the LATCH anchors are only on the sides. Prioritize seats with a narrow base to maximize room for buckling.

Honestly, I wouldn't bank on it for the long haul. Sure, you might make it work with infant carriers for a short while. But think about the future: you'll have toddlers in big convertible seats, then boosters. Those stages need even more room for buckling and wiggling. The CX-5 is a driver's SUV, not a people-hauler. You’ll be sacrificing your sanity every school run. Look at a Honda Pilot or a Toyota Highlander if you need three rows. It’s a world of difference.

We tried it with our CX-5 when we had our third. It worked, but just barely. We had to get two of those super-slim Diono seats for the sides and an infant bucket seat in the middle. Getting the kids buckled was a puzzle every time—my knuckles were always scraped. It’s a temporary fix. We lasted about a year before we admitted defeat and upgraded to a minivan. The CX-5 is a fantastic car, but it’s really built for two kids comfortably.


