Stevens retired in 2019 as EVP and senior advisor of General Motors Corp. He began his career with GM in 1978 at Buick Motor Div. and in 1993 moved to GM's corporate headquarters. He has held various leadership positions including CFO of GM North America, and he led GM's financial operations for U.S. Sales, Service and Marketing, GM Canada, GM de Mexico, North America Manufacturing, Customer Care and Aftersales, and OnStar.