How Do Car Seats Fit in a 2025 Polestar 3?
The verdict: The 2025 Polestar 3 easily accommodates two car seats thanks to accessible lower anchors and ample backseat space.
Does it fit three car seats? No.
Take a look at how the Latch system and each car seat scored below in our Car Seat Check of the 2025 Polestar 3.
Related: Search Car Seat Checks
Latch: Grade A
The two sets of lower anchors are easy to find and use. There are three top tether anchors: two outer anchors that are clearly labeled and sit midway down the seatbacks, as well as a middle anchor that isn’t labeled and sits at the base of the seatback.
Infant Seat: Grade A
Connection to the lower anchors was easy, and the infant seat fit well. Our 5-foot-8-inch front passenger had plenty of room in front of the car seat.
Rear-Facing Convertible: Grade A
As with the infant seat, the convertible in rear form was easy to install and fit well.
Forward-Facing Convertible: Grade B
This seat was easy to install, but the Polestar 3’s head restraints do not come out or move up; they only fold down and can interfere with how the car seat fits against the seatback. Also, the guidance in the digital owner’s manual is unclear about how to connect to the top tether anchor. We were unable to route it through the pillars, so we routed it over the head restraint.
Booster: Grade B
Again, the fixed head restraint could prevent the booster from sitting flush against the seatback. The Polestar 3’s buckles sit low but are on stable stalks, which should make them easy for kids to grasp and use.
Grading Scale
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 the third row when available.
C: Marginal room plus one fit or connection issue. Difficult to access the third row when available.
D: Insufficient room, plus multiple fit or connection issues.
F: Does not fit or is unsafe.
About Cars.com’s Car Seat Checks
Editors Jennifer Geiger and Jennifer Newman are certified child safety seat installation technicians.
For the Car Seat Check, we use a Chicco KeyFit 30 infant-safety seat, a Graco Contender 65 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.
Cars.com’s Editorial department is your source for automotive news and reviews. In line with Cars.com’s long-standing ethics policy, editors and reviewers don’t accept gifts or free trips from automakers. The Editorial department is independent of Cars.com’s advertising, sales and sponsored content departments.
