After Toyota CEO Akio Toyoda's third public apology in two weeks, the car manufacturer could be facing another massive recall. On Thursday, the National Highway Traffic Safety Administration will launch a formal investigation into more than 150 complaints related to the steering of Toyota’s 2009-2010 Corolla model. About 500,000 Corollas have been affected. The car reportedly has a tendency to veer from side to side at highway speeds, and a number of reported accidents have been attributed to the issue. "It's hard to say which is worse: a runaway vehicle or a car that wants to steer itself off the road," an auto-safety authority said. "Either one is a serious safety hazard."