Whitacre Takes Over as GM CEO, Announces More Exec Changes
DETROIT - GM Chairman and newly appointed CEO, Ed Whitacre, announced several key leadership changes to improve accountability and responsibility for market performance in North America and around the world.
DETROIT- GM Chairman and newly appointed CEO, Ed Whitacre, announced several key leadership changes to improve accountability and responsibility for market performance in North America and around the world. Former President and CEO Fritz Henderson announced his resignation last week on Dec. 1.
Mark Reuss is named president of GM North America. Reuss was briefly vice president of Engineering after leading GM's Holden operations in Australia in 2008. Reporting to Reuss will be Susan Docherty, who is appointed vice president, Vehicle Sales, Service and Marketing operations. Also aligned under the new North American group will be Diana Tremblay, who is named vice president, Manufacturing and Labor Relations. Tremblay was most recently vice president of Labor Relations. Denise Johnson is named vice president, Labor Relations. Johnson was most recently vehicle line director and chief engineer for Global Small Cars.
Nick Reilly is named president, GM Europe. Reilly has been leading the restructuring efforts in Europe with the Opel/Vauxhall operations and will leave his role leading GM International Operations.
Tim Lee is named president of GM International Operations, overseeing GM's Asia-Pacific, Latin America, Africa, and Middle East operations. Lee was most recently group vice president, Manufacturing and Labor Relations.
Bob Lutz remains vice chairman and will act as advisor on design and global product development.
Thomas Stephens remains vice chairman of Global Product Operations, and will now take on global purchasing in his organization, which will continue to be lead by Robert Socia, vice president, Global Purchasing and Supply Chain. Karl-Friedrich Stracke is appointed vice president, Engineering, reporting to Stephens. Stracke was most recently executive director of Engineering.
J. Christopher Preuss, vice president, Communications, will now report to Whitacre; he previously reported to Lutz.
The balance of the direct report staff remains unchanged and includes CFO Ray Young; John F. Smith, vice president Corporate Planning and Alliances; Terry Kline, vice president IS&S; Mary Barra, vice president Human Resources; Mike Millikin, vice president of Legal; and Ken Cole, vice president Government Relations and Public Policy.
Click here for more information on GM's corporate officers.
More Leasing

Union Leasing Rebrands as Moventum Fleet Management
The name Moventum reflects the company’s position at the intersection of movement and momentum, with the guiding principle "Keep Work Moving."
Read More →
How Does a Mid-Major FMC Compete? Ask BBL Fleet
This Pittsburgh-based FMC built a technology-first culture, sustained double-digit organic growth, and expanded its Midwest footprint through a recent acquisition. How did it happen?
Read More →
What’s Really Happening in Fleet Supply Right Now
Fleet supply has improved, but not everywhere. Merchants Fleet’s Charles Matthew explains where constraints still exist, what risks are emerging, and why fleets shouldn’t wait to place orders.
Read More →
These Edges Are Measured in Inches — Matt Dyer on Fleet’s New Normal
The Merchants Fleet CEO contends that fleets that drive the business win the inches. In 2026, every one of them counts.
Read More →
Who Gets a Company Car? (In 2026 and Beyond)
As costs rise and scrutiny increases, fleets are refining criteria that govern eligibility for company-owned vehicles.
Read More →
DriveItAway Holdings, Free2move Launch Operations In Nine Cities
The co-branded program with Stellantis’ mobility division scales up leasing and financing options nationwide with more cities to come online in 2026.
Read More →
AFLA 2025 Conference in Pictures
Drawing over 640 attendees, the 2025 AFLA Annual Conference was held Sept. 14-17 at the JW Marriott Marco Island Beach Resort in Florida.
Read More →
DriveItAway, Free2move Partner to Expand Vehicle Access for Dealers
The arrangement enables franchise dealers to offer flexible lease-to-own programs with no credit checks, no down payments, and no long-term commitments.
Read More →
New Survey: How Well Are FMCs Serving Fleets? We Want Your Input
Fleet managers: Share your experience to help benchmark fleet management companies’ service, strategy, and support.
Read More →
Enterprise Fleet Management Enters Its Next Leadership Chapter
With Brice Adamson’s retirement, EFM hands the reins to Bryan Taylor. How will the company sustain its momentum in a changing fleet landscape?
Read More →