can 3 car seats fit in a 2016 rdx

[OEliana]

Yes, three car seats can fit in the back seat of a 2016 Acura RDX, but it is a very tight squeeze and requires careful planning. Success heavily depends on the specific type, size, and design of the car seats you use. The RDX’s official specs list it as a 5-passenger vehicle with a rear hip room of 52.4 inches, which is on the narrower side for three-across installations.

The key is using a strategic combination of narrow-profile car seats. You won't have success with three large, bulky convertible seats. The most reliable method is to use the vehicle's two sets of LATCH anchors (found in the window seats) for the outer seats and the vehicle's center seat belt to secure the middle seat. While the center seat lacks a dedicated LATCH system, using the seat belt is a safe and standard practice approved for car seat installation.

For a visual and technical comparison, here are the key metrics that impact three-across feasibility:

Metric	2016 Acura RDX	Common Competitor (2016 Lexus NX)	Notes
Rear Hip Room (Width)	52.4 inches	53.1 inches	The primary limiting factor for seat width.
Rear Shoulder Room	57.0 inches	54.3 inches	Can affect how seats angle at the top.
Number of LATCH Sets	2 (Outboard seats only)	2 (Outboard seats only)	Standard for most midsize SUVs of this era.
Center Seat Belt Type	Non-retractable Lap Belt	Retractable Lap/Shoulder Belt	A lap belt is often easier for installing some car seat bases.
IIHS "Good" Rating (Side)	Yes	Yes	Indicates good overall crash protection.

Ultimately, fitting three car seats is possible but not convenient. You'll be dealing with a very tight fit, making buckling children in difficult. Without narrow seats, you risk a faulty installation where the seats are compressed against each other. A hands-on test fit with your specific car seats before committing is highly recommended.

[SkylarLee]

We did it in our 2016 RDX, but just barely. We used a Diono Radian 3RX for the middle—it’s super narrow—and two cheaper, slimmer infant seats on the sides. It’s a puzzle. My husband’s knuckles were scraped up from tightening all those straps. It works for now with the babies, but I’m already dreading when we have to upgrade to bigger convertible seats. We’ll probably need a new car by then. It’s a temporary solution, not a long-term plan.

[PiperMarie]

Technically, yes, but you must select your car seats for their width, not just features. Look for models specifically marketed as "narrow" or "three-across" friendly. Brands like Diono and Clek are famous for this. The installation process is precise: use LATCH for the outboard seats and the center lap belt for the middle seat. Always check for independent movement—each seat should not shift more than one inch at the belt path. A certified technician can verify your installation is safe.

[BarrettLee]

It’s a tight squeeze that depends entirely on the car seats. If you plan on using infant seats with bases, or bulky all-in-ones, you’ll likely fail. The realistic path is to use a combination of narrow, convertible seats. The center seat belt is your friend here. Be prepared for a frustrating installation process each time. The real question is whether this configuration is practical for daily use, which, for most families, it is not.

[StIsla]

Focus on the car seat models, not just the car. The RDX's interior width is a constraint. You need to minimize the "hazard zone" where car seats push against each other, compromising the install. Search for car seat width spreadsheets online; enthusiast forums have detailed measurements. Measure your actual seats and compare. The goal is a "rock solid" install for each seat individually. If they’re jammed in, it’s not safe, even if they seem to fit.