DETROIT — When researchers at two West Coast universities took control of a General Motors car through cellular and Bluetooth connections in 2010, they startled the auto industry by exposing a glaring security gap. Five years later, two friendly hackers sitting on a living room couch used a laptop computer to commandeer a Jeep from afar over the Internet, demonstrating an even scarier vulnerability. “Cars don’t seem to be any more secure than when the university guys did it,” says Charlie Miller, a security expert at Twitter who, along with well-known hacker and security consultant Chris Valasek, engineered the attack on the Jeep Cherokee. Fiat Chrysler, the maker of Jeeps, is now conducting the first recall to patch a cybersecurity problem, covering 1.4 million Jeeps.