How Do Car Seats Fit in a 2018 Hyundai Ioniq Hybrid?

Editor’s note: This Car Seat Check was written in July 2017 about the 2017 Hyundai Ioniq Hybrid. Little of substance has changed with this year’s model. To see what’s new for 2018, click here, or check out a side-by-side comparison of the two model years.

Hyundai hit the alternative-fuel market in a big way for 2017 with a trio of fuel sippers: the Ioniq Hybrid, Ioniq Plug-in Hybrid and Ioniq Electric. For this Car Seat Check, we tested the Hybrid model. It’s EPA-rated at 55/54/55 mpg city/highway/combined and offers a very comfortable driving experience and roomy backseat.

How many car seats fit in the second row? Two

Related: More Car Seat Checks


  • Rear-facing convertible, grade A: This seat’s rigid, chunky connectors had no trouble finding the Latch anchors, and the seat fit well; the front passenger had ample legroom.
  • Forward-facing convertible, grade A: The seat was easy to install, and it fit well after we removed the head restraint.
  • Booster, grade A: The seat fit nicely after we raised the head restraint. The outboard seats have stable buckles, making them easier for kids to grasp and use.


  • Latch, grade B: Two sets of lower anchors sit about three-quarters of an inch into the seat bight; stiff cushions complicate access.
  • Infant, grade B: Stiff cushions and our infant seat’s slim, hooklike Latch connectors made connection a bit tough. Our 5-foot-6-inch passenger had enough front legroom, however.

Skip It

  • None

Grading Scale

Solid indicates an A grade for optimum ease of use and fit. So-So indicates B or C grades for one to two ease-of-use or fit issues. Skip It indicates D or F grades.

A: Plenty of room for the car seat and the child; doesn’t impact driver or front-passenger legroom. Easy to find and connect to Latch and tether anchors. No fit issues involving head restraint or seat contouring. Easy access to the third row.   

B: One room, fit or connection issue. Some problems accessing third row when available.

C: Marginal room plus one fit or connection issue. Difficult to access third row when available.

D: Insufficient room, plus multiple fit or connection issues.

F: Does not fit or is unsafe.

About’s Car Seat Checks

Editors Jennifer Geiger, Jennifer Newman and Matt Schmitz are certified child safety seat installation technicians.

For the Car Seat Check, we use a Graco SnugRide Classic Connect 30 infant-safety seat, a Britax Marathon convertible seat and Graco TurboBooster seat. The front seats are adjusted for a 6-foot driver and a shorter passenger. The three child seats are installed in the second row. The booster seat sits behind the driver’s seat, and the infant and convertible seats are installed behind the front passenger seat.

We also install the forward-facing convertible in the second row’s middle seat with the booster and infant seat in the outboard seats to see if three car seats will fit; a child sitting in the booster seat must be able to reach the seat belt buckle. If there’s a third row, we install the booster seat and a forward-facing convertible. Learn more about how we conduct our Car Seat Checks.

Parents should also remember that they can use the Latch system or a seat belt to install a car seat, and that Latch anchors have a weight limit of 65 pounds, including the weight of the child and the weight of the seat itself.’s Editorial department is your source for automotive news and reviews. In line with’s long-standing ethics policy, editors and reviewers don’t accept gifts or free trips from automakers. The Editorial department is independent of’s advertising, sales and sponsored content departments.

Latest expert reviews