The Chevrolet Volt got a clean bill of health, last Friday, with the National Highway Traffic Safety Administration closing its investigation into potential problems with the plug-in hybrid’s battery pack – but that doesn’t mean General Motors’ problems with the Volt are over, as a Congressional hearing is scheduled to begin on Wednesday.
The Volt controversy stems from a fire that occurred last spring, weeks after one of the battery cars went through a federal crash test. A second Volt battery pack caught fire after being tested in November. That triggered an investigation by the NHTSA – as well as hearings by the House Committee on Oversight and Government Reform, California Republican and committee chairman Darryl Issa contending that the government agency initially tried to cover up the original fire.
Meanwhile, GM, noting that there have been no real-world reports of battery-related fires, nonetheless announced on January 5 that it will make a number of small but significant modifications to further reduce the likelihood of problems with the battery pack.