The National Highway Traffic Safety Administration tells Reuters the number of deaths linked to faulty ignition switches in General Motors vehicles is "likely" higher than the 13 the automaker has claimed.
This news comes as GM issued its 30th recall - this time for 500 trucks and SUV's that have an airbag problem.
The mounting recalls have put CEO Mary Barra in the hot seat.
Congressional aides tell CNN Barra was on Capitol Hill this week to update lawmakers on the automakers investigation into accidents caused by faulty ignition switches, telling them she hopes to release findings by early July.
Christine Romans is OutFront with a closer look at the woman at the center of GM's recall crisis.