 The NHTSA also said it was working with all automakers to develop postcrash procedures to keep occupants of electric vehicles and emergency personnel who respond to crash scenes safe . Additionally , NHTSA advised to be aware that fires may occur a considerable amount of time after a crash . General Motors said the first fire would have been avoided if GM 's protocols for deactivating the battery after the crash had been followed . These protocols had been used by GM since July 2011 but were not shared with the NHTSA until November 2011 . In another statement the carmaker stated that they “ are working with other vehicle manufacturers , first responders , tow truck operators , and salvage associations with the goal of implementing industrywide protocols . ” 
