Share

Installing car seats in the 2021 Tesla Model S is a challenging process due to difficult-to-access lower Latch anchors, heavily bolstered seats, and fixed head restraints, resulting in mediocre grades across most car seat types. Based on our assessment experience, the sedan does not fit three car seats across its second row, and booster seat installation is particularly problematic.
The 2021 Tesla Model S received mixed results in our Car Seat Check, conducted by certified child safety seat installation technicians. The evaluation uses a standard set of seats: a Chicco KeyFit 30 infant seat, a Graco Contender 65 convertible seat, and a Graco TurboBooster. The grading scale ranges from A (plenty of room, easy connection) to F (does not fit or is unsafe). Here’s a summary of the findings:
| Car Seat Type | Grade | Key Issues |
|---|---|---|
| Infant Seat | B | Rigid Latch connectors helped, but anchor access was difficult. |
| Rear-Facing Convertible | C | Difficult and time-consuming lower anchor connection. |
| Forward-Facing Convertible | C | Tough anchor connection; fixed head restraint prevented flush fit. |
| Booster Seat | D | Narrow seating area, blocked seat belt buckle, angled fit. |
The Latch system (Lower Anchors and Tethers for Children) is a standardized system designed to make car seat installation easier. In the Model S, there are two sets of lower anchors and three top tether anchors on the seatbacks. However, accessing the lower anchors is complicated by the seat design and a protective flap, leaving barely enough clearance for connection. The three top tether anchors are clearly marked. For installation, a dual top tether strap must be positioned on either side of the head restraint, while a single tether should go on the outside (nearest the window). A center installation requires the strap to go over the head restraint.
No, the 2021 Tesla Model S does not fit three car seats in the second row. When attempting to install the forward-facing convertible in the center with the booster and infant seats in the outboard positions, the configuration was unsuccessful. The narrow seats and bolsters, combined with the booster's fit issues, made it impossible to achieve a safe installation for three seats.
For parents considering the 2021 Tesla Model S, the car seat installation process is more difficult than in many rival vehicles. Key takeaways include:









