Fisker Automotive is expanding a recall of its 2012 plug-in hybrid Karma because of potential problems with the electric car's battery.
The automaker initially recalled 50 of the $100,000 cars in December. It said improperly installed hose clamps in the model's battery pack could cause coolant to leak, potentially starting a fire.
Fisker has added 19 cars to that recall, 10 of which it believes were delivered to customers.
The Irvine, Calif.-based automaker says no incidents have been reported by customers or retailers. The company says it will replace the battery pack.
Fisker, founded in 2007, is privately held.
The National Highway Traffic Safety Administration investigated Chevrolet Volt battery fires earlier this year. It determined that the car was no riskier than vehicles with conventional gasoline engines.