General Motors Co and two dealership companies, Jim Koons Management and Lithia Motors Inc, will settle allegations they advertised that they sold carefully inspected cars that in fact had unrepaired safety recalls, the Federal Trade Commission said on Thursday. The FTC's allegations were that GM said its "certified pre-owned vehicles" had a 172-point inspection but failed to disclose that no one had repaired such critical issues as an ignition switch defect that can affect engine power, steering, braking and airbag deployment.