GM is telling customers to park the SUVs outdoors because they could catch fire when left unattended.
The probe was opened over an April 2011 car crash that severely injured an elderly man when the passenger air bags didn’t deploy.
Lawmakers put Barra on the spot, telling the CEO she should have fired GM’s corporate counsel, Michael Millikin, based on the conclusions of an internal report.
The recall covers vans from the 2009-2014 model years and includes GMC Savana and Chevrolet Express models.
General Motors is recalling more than 1.5 million vehicles, including SUVs, vans and Cadillacs, for defective air bags and other problems.
A risk of engine fires is forcing General Motors to recall its popular Chevrolet Cruze compact car.