The biggest message I have for young women is, Don't start cutting off branches of your career tree unnecessarily early. Sometimes women say, I know I want to have a family or play in the local symphony, and they start pulling themselves out of their career path. You don't have to take yourself out of the running before you even start.

It's a marathon, not a sprint. I actually feel like I come to work stronger when I've had a little time on the weekend to step away from it and enjoy my family and other things. I come back energized. If people think they're going to work 24/7, week in and week out, they're not bringing their full strength to the table.

My senior leadership team is half people who have been at GM for a long period of time like me, and others who have joined the company within the last five years from different industries, experiences, and countries. You have a better picture of the world. The diversity of thought is where you can make better business decisions.

When I am there at our global product development centers, I am meeting with the design team and reviewing design work being done there and meeting with engineers responsible for work being done specific to that region, meeting with purchasing team.