General Motors Co.’s top lawyer will be on Capitol Hill this week to guide CEO Mary Barra through two congressional hearings about the automaker’s recall over ignition-switch problems, a company spokesman confirmed.

General Counsel Michael Millikin will advise Barra today as she testifies at the House Energy and Commerce subcommittee on oversight and investigations. The hearing is called “The GM Ignition Switch Recall: Why Did It Take So Long?”