Millikin joined GM in 1977 and was promoted to general council in 2009. The automaker's leading lawyer rose to prominence last year when he faced tough questions at a hearing before Congress into the company's handling of the ignition switch recall. When asked by legislators, Millikin refused to waive the liability shield from GM's bankruptcy and declined to release confidential court documents regarding the faulty parts. The report from former US Attorney Anton Valukas claimed that Millikin didn't know about the problem until the safety campaign. Although, lawyers underneath him were fired in the fallout.
As of this writing, GM has offered settlements for 52 deaths and 79 injuries due to the faulty ignition switches, and all the expenses for all of the automaker's recalls in 2014 totaled some $2.8 billion.
GM hired an executive search firm called Heidrick & Struggles International to find Millikin's replacement, according to The Detroit Free Press. A spokesperson for the automaker tells the newspaper that the process to hire a successor is still ongoing but doing well.