Akerson said that if necessary, GM will recall the more than 6,000 Volts now on the road in the U.S. and repair them once the company and federal safety regulators figure out what caused the fires.

“If we find that is the solution, we will retrofit every one of them,” Akerson said. “We’ll make it right.”

The fires happened seven days to three weeks after tests performed by the National Highway Traffic Safety Administration. And GM has said there’s no threat of fires immediately after crashes. GM also has said that no Volts involved in real-world crashes have caught fire.

Still, NHTSA has opened an investigation into the fires and has asked other companies that make electric cars for battery testing data.