The National Highway Traffic Safety Administration (NHTSA) is being accused of trying to keep the Chevrolet Volt battery fire a secret in an attempt to protect the government’s investment in the car company. Members of the House Committee for Government Reform released a report that states that the bailout of GM, creates business and political reasons for the government to sacrifice public safety. They criticize the time it took for the investigation to begin and the conclusion that the vehicle was safe, just two weeks into the investigation.

The NHTSA defends their position on the Chevy Volt investigation, saying that the agency is still developing protocols for dealing with battery powered vehicles. In the case of the Volt, they do not see the fire as a highway hazard because the problem could only be reproduced after impaling the battery with a steel rod. Still, it took at least a week for the fire to start. They added that GM was quick in responding to the problem, and developed protocols to drain the battery after a Volt has been in an accident.

General Motors is asking its Chevrolet Volt customers to return their vehicles to dealers so they can make repairs that will lower the risk of battery fires. The announcement comes after an investigation into a battery fire that consumed three vehicles at the National Highway Traffic Safety Administration (NHTSA) test facility. Follow-up tests to simulate the incident resulted in two out of three vehicles catching fire. GM and federal safety officials believe that the fires were caused by coolant leaking from damaged plastic casing around the batteries after a side-impact collisions. That coolant caused an electrical short, which sparked battery fires seven days to three weeks after the crashes.

Dealers will add steel plates around the Volt battery that will spread the force of a crash over a larger surface area. Tests carried out by GM and the government have shown that the repairs prevent battery damage and coolant leaks.