how long do car seats last before they expire

Car seats typically last between 6 to 10 years before they expire. The specific expiration timeframe depends on the manufacturer and the type of car seat: infant carriers generally last about 6 years, convertible car seats around 8 years, and all-in-one seats up to 10 years. The expiration date is usually based on the car seat's manufacture date and can be found on a sticker or molded into the seat itself. After the expiration date, the materials degrade due to wear and exposure to temperature changes, potentially compromising safety, so expired car seats should no longer be used.