Chevrolet Volt fire - latimes.com Federal safety regulators closed the books on their Chevrolet Volt fire investigation, saying the remedy General Motors has proposed is sufficient, and is issuing guidelines for how emergency personnel and tow truck operators should deal with electric vehicles and plug-in hybrids that have been damaged in severe accidents. The National Highway Traffic Safety Administration also said that it did not identify a safety defect in the Volt. The agency said it "remains unaware of any real-world crashes that have resulted in a battery-related fire involving the Chevy Volt or any other electric vehicle. NHTSA continues to believe that electric vehicles show great promise as a safe and fuel-efficient option for American drivers. NHTSA said it does not believe that Volts or similar vehicles pose a greater risk of fire than gasoline-powered autos. The agency's "comments are consistent with what we have said all along: The Volt and the electric cars are safe," said Rob Peterson, a Chevrolet spokesman. GM is making modifications to the Volt after a series of fires ignited after test crashes of the plug-in hybrid vehicle. The fires were caused by a coolant leak that occurred when the battery pack in the vehicle was punctured during severe side test crashes by the NHTSA. We are learning about this technology as we go. NHTSA needs to be proactive in establishing these guidelines," said Jeremy Anwyl, vice chairman of auto information company Edmunds.com. In its guidelines, the safety agency said repair shops and salvage yards should not store a severely damaged vehicle with a lithium-ion battery - the type of battery in the Volt and many other vehicles that can operate on electricity -- inside a structure or within 50 feet of any structure or vehicle. Storage yards should also contact the manufacturer to have the battery drained of electricity. And all safety and repair personnel should exercise caution and call the fire department if they detect leaking fluids, sparks, smoke, flames, increased temperature or gurgling from a damaged vehicle. The guidelines are important because many similar vehicles are coming onto the market this year. Ford plans to start selling an all-electric Focus and offer a plug-in hybrid version of the larger Fusion. GM is retrofitting the roughly 8,000 Volts it has already sold and modifying new cars coming off the assembly line. It is adding structural reinforcement that better protects the battery pack from punctures or a coolant leak in a severe side crash. NHTSA has conducted tests on Volts retrofitted with the structural reinforcement and said the remedy prevents the types of fires that were occurring in its early side impact tests. There will be growing pains as this technology comes on the market. This won't be the last thing that we hear of," said Aaron Bragman, an analyst with IHS Automotive. "GM came out with a fix for it because it was a public relations issue but from an engineering viewpoint there really wasn't a problem with the car considering the conditions of the test needed to create a fire," Bragman said. Nissan's Leaf, an all-electric vehicle, sold just 9,674 units, and Chevrolet sold 7,671 The Volt also may get a boost in March, when a special edition GM is producing for the California market will hit dealer showrooms. This version will come with a "low-emissions package" that is expected to qualify the vehicle for a $1,500 state rebate and access to California carpool lanes. The lack of a state rebate and the carpool lane sticker has hurt Volt sales in the state compared to Nissan's Leaf, which has been its primary competitor among early adopters of electric and plug-in cars.