Car seats typically expire after six years from the date of manufacture due to wear and tear, changes in regulations and standards, and recalls. Locate the expiration date and serial number on Simply Smart Nursery Center Playard Whisper Grey The Cybex Priam Stroller with Cloud Q Infant Car Seat Is a Premium Travel System That Grows with Your Child Gear Diary Uppababy Vista stroller folding instructions needed Mockingbird vs. UPPAbaby Vista V2 Stroller Comparison Strolleria