Car seats can be recycled but it can be a challenge locating places that recycle them. Target has an annual event where they accept infant car seats.
It’s important to see if your car seat is ready to be recycled. Car seats have expiration dates for usage. Check with the car seat manufacturer for expiration date for that model. There can also be a product recall. If someone gives you a used car seat make sure to check the expiration date and if there are any recalls for that specific car seat. Before the expiration date and if there aren’t any product recalls car seats can be donated.