The Center for Auto Safety, a consumer advocacy group founded by Ralph Nader, requested the NHTSA investigation. In response to the Washington-based group's petition, NHTSA issued the following in a statement: "The existence of these post-crash fires does not, by itself, establish a defect. Further review and investigation into these incidents is needed." And so an investigation we shall have.
A preliminary report from NHTSA suggested that there wasn't any evidence that the 1993-2004 Grand Cherokee's fuel tanks were "over-represented for post-crash fires." If this investigation leads to a recall, Chrysler has indicated that it will cooperate with the agency.
[Source: Business Week]