
Yes, you can fit 3 car seats in a Chevy Trax, but it is a very tight fit and requires careful selection of the car seats. The 2024 Chevy Trax has three sets of LATCH anchors (Lower Anchors and Tethers for CHildren) across the rear seat, which is a good start. However, the vehicle's overall interior width is the main limiting factor.
The key is using narrow, compact car seats. Standard, wide models will not fit three-across. You'll need to look for seats specifically designed for this purpose, often called "three-across" or "slim" car seats. The installation process can be challenging, and you will likely need to use the vehicle's seat belts for at least one of the installations, as the dedicated LATCH anchors might not align perfectly when three seats are side-by-side.
Here is a comparison of the Chevy Trax's rear seat specs against some competitors known for better family-friendly space:
| Vehicle Model | Rear Shoulder Room (Width) | Rear Hip Room | Easiest 3-Car Seat Fit? | Key Consideration |
|---|---|---|---|---|
| Chevy Trax | 53.8 inches | 50.0 inches | Challenging | Requires narrow, "3-across" specific car seats. |
| CR-V | 55.5 inches | 55.3 inches | Moderate | More forgiving width than Trax. |
| Kia Seltos | 53.7 inches | 51.1 inches | Challenging | Similar narrow fit to the Trax. |
| Toyota RAV4 | 56.0 inches | 47.7 inches | Easier | Wider shoulder room provides more flexibility. |
| Subaru Forester | 56.0 inches | 52.7 inches | Easier | One of the best in class for cabin width. |
Before you commit, the absolute best practice is to take your actual car seats to the dealership and attempt the installation yourself. This hands-on test is the only way to be 100% certain they will fit securely and without excessive compression.

We tried it with our Trax last month. It’s possible, but just barely. We had to buy two new, super-slim booster seats to go next to our infant’s rear-facing seat. The hardest part was buckling the seatbelt for the middle kid—my hand barely fit between the seats. It works for school runs, but I wouldn’t want to take a long road trip like that. Go to the store and test your exact seats before you buy the car.

As a former auto technician, I look at this from an installation safety perspective. The Trax has the required hardware, but the real-world geometry is tight. You must achieve a secure, non-moving installation for all three seats. This often means using the seat belt system for the center seat instead of LATCH. The narrow cabin can cause seats to press against each other, which may affect their stability. Always do the "inch test" – if a car seat moves more than an inch side-to-side or forward at the belt path, it's not installed correctly.

Focus on the type of car seats. A combination of a narrow rear-facing infant seat, like a Clek Liing, with two slim high-back boosters, like a Diono Monterey, is your best bet. Avoid bulky convertible seats. The goal is to minimize the physical footprint of each seat. Remember, the outboard seats cannot impinge on the door panels. This configuration is a puzzle that prioritizes narrow profiles over all other features.

Think about your kids' ages. If you have three in bulky rear-facing convertible seats, forget it—the Trax won't work. The scenario is most feasible if at least one child is in a backless booster or if you have two infants in narrow carriers and a booster. The situation is also temporary; as your kids grow and their seats become less bulky, the fit might become easier. It's a short-term solution that requires a lot of compromise on convenience.


