Ed Welburn, vice president of General Motors Global Design, stands with the Buick Riviera concept as it makes its North American debut at the North American International Auto Show in 2008 in Detroit.
John F. Martin/Courtesy of General Motors
Wendi Kunkel points out the key in the ignition on her 2010 Chevy Cobalt in Rockwall, Texas, in April. GM recalled millions of cars over a flaw in ignition switches that could cause the vehicles to shut off unexpectedly.
Executive vice president and general counsel at General Motors Co. Michael Millikin (from left), GM CEO Mary Barra, CEO and president of Delphi Automotive PLC Rodney O'Neal and chairman of the firm at Jenner & Block Anton Valukas testify before a Senate Commerce, Science and Transportation Committee hearing.
Jim Lo Scalzo/EPA/Landov
A Chevrolet logo on the grill of a 2013 Traverse at the 2013 Pittsburgh Auto Show. General Motors is recalling more than 1.5 million vehicles, including SUVs, vans and Cadillacs, for defective ignition switches and other problems.
Gene J. Puskar/AP
Laura Christian, far right, talks about how her birth daughter Amber Marie Rose was killed on July 29, 2005, in a car crash that investigators determined was linked to a defective ignition switch.
J. Scott Applewhite/AP