If you have the following car seat, click through to the Safercar.gov press release for more information:
Baby Trend, Inc. (Baby Trend) is recalling certain model year 2011 and 2012 TrendZ Fastback 3-in-1 child restraints, models FB60070 (Granite) and FB60408 (Jellybean), manufactured between October 2011 and July 2013. The defect involves difficulty in unlatching the harness buckle. In some cases, the buckle becomes stuck in a latched condition so that it cannot be opened by depressing the buckle’s release button.
There’s some info at the Baby Trend web site, or you can call BabyTrend at 1-800-328-7363.
I highly recommend signing up for recall notifications from the NHTSA here.