The U.S. Consumer Product Safety Commission has all the details about the Kidde smoke alarm recall and you can read all about it HERE.
Models recalled include:
-Kidde dual sensor PI2010 and PI9010
There is a possible risk of failure to alert consumers to a fire, which is extremely dangerous.
The issue is a yellow cap possibly left on the smoke alarm during the manufacturing process that may cover one of two sensors, compromising its ability to detect smoke. This puts consumers at risk of not being alerted to a fire, according to the warning.
Consumers are advised to remove the alarm from the wall or ceiling, inspect it for the presence of a yellow cap and immediately contact Kidde if one is located. [Source]