OnStar issued a privacy notice informing customers that it would continue to collect data on vehicles still connected to its servers, even for those who have already canceled their subscriptions. The move elicited a chorus of protests from Democratic privacy advocates in the Senate, including Chris Coons, Al Franken and, most recently, Charles Schumer, who wrote a letter to the FTC yesterday calling for an investigation into what he sees as a bold violation of consumer rights. "By tracking drivers even after they've canceled their service, OnStar is attempting one of the most brazen invasions of privacy in recent memory," the New York Senator said. "I urge OnStar to abandon this policy and for FTC to immediately launch a full investigation to determine whether the company's actions constitute an unfair trade practice." Find out more about OnStar's new policy, after the break.