Please note that this product needs two sets of batteries, and there are two separate battery boxes. One battery box operates the swing feature and needs 4 “C” batteries.  The other battery box operates the vibration feature and requires 1 “D” battery.

If you've already changed the batteries and the swing is still not working, please contact one of our Fisher-Price® baby gear representatives by email or phone at 1-800-432-5437.