If any Sioux City resident has a battery-operated smoke alarm in their home affected by the recall, they can contact the manufacturer or Sioux City Fire Rescue to obtain a free replacement.
Federal safety regulators are warning that thousands of Kidde smoke alarms may not alert people if there is a fire in their home.
Kidde is recalling 452,000 Dual Sensor smoke alarms because of a fire hazard.
That cap, seen through a slit in the edge of the units, covers one of the two smoke sensors and can compromise the unit's effectiveness.
About 452,000 Kidde dual-sensor (photoelectric and ionization) smoke alarms sold in the US and another 40,000 sold in Canada may be defective, the warning states.
The PI2010 model is AC-powered and the PI9010 is battery-powered.
Review the below Identification Guide to help determine if you have an affected smoke alarm.
The commission said people should remove the alarm from the wall or ceiling and inspect it through the opening on the side for the presence of a yellow cap. However, for the time being, the company advises reinstalling the recalled smoke alarm until the replacement alarm is received. Those who prefer not to call can go online can visit http://www.kidde.com and click on "Product Safety Recall" for more information.