Yes, and I would need to Google it to be sure exactly why, but my instinct is that there would be a worry about brittle plastic components. In addition, any car seat that is set to expire might be on a recall list. For mine, I just typed in the type of seat and "recall" into Google to be sure that they were OK.
Here's an article I found on it:
In the article there's also a link to a video that shows a crash test of an expired car seat.
Yep, car seats definitely do expire, regardless of having been in an accident or not. It has to do with the plastic degrading over time, especially with exposure to temperature changes, direct sunlight, etc. (But that doesn't mean that a car seat stored in a basement for a few years is safe to use if it's passed the expiration date.)
The crash test video in the above link is a great one to watch. Our infant bucket seat expires in December, so we will be forking out $$ for a new one!
I'm glad you brought this up - I had no idea they "expired". We were planning on using our son's infant carseat/stroller combo (Graco brand) - it's from May 2007...I wonder if it is still okay to use? I guess I should look that up.
DS Austin ~ May '07
DS Jake ~ January '10, a moment in our arms, a lifetime in our hearts...
DD Allyson ~ December 1, 2011
My pg.org journal
I gave mine to my cousin who had her baby 2 weeks ago. By December, she will almost be in a bigger seat anyway and we just bought a new one for this new baby.