Exhibit 99.1 THIRD-QUARTER 2020 EARNINGS GM Delivers Income of $4.0B and EBIT-adj. of $5.3B • EPS-diluted of $2.78 and EPS-diluted-adjusted of $2.83 • EBIT-adjusted margin of 14.9 percent driven by a strong product lineup, disciplined pricing and cost actions • Strong automotive liquidity of $37.8 billion; expect to repay revolver balance by year-end Q 3 2020 RESULTS OVERVIEW Net Revenue Income Auto Operating Cash Flow EPS-Diluted* GAAP $35.5B $4.0B $9.9B $2.78 vs. Q3 2019 0% 74% $4.9B 74% EBIT-adj. Margin EBIT-adj. Adj. Auto FCF EPS-Diluted-adj.* Non-GAAP 14.9% $5.3B $9.1B $2.83 vs. Q3 2019 6.5 pts 78% $5.4B 65% *Includes $0.05 benefit from PSA revaluations. This year, and the third quarter, is a testament to GM’s resilience. We entered the pandemic in a strong position and acted decisively to keep our teams safe, conserve cash and preserve liquidity, all while keeping our critical product programs on track. Now we are well positioned to meet rising customer demand, accelerate our transformation and deliver our vision of a world with zero crashes, zero emissions and zero congestion.” “ – Mary Barra, Chairman & CEO RESULTS DEMONSTRATE RESILIENCE POWERING GM’S ALL-ELECTRIC FUTURE GM’s third-quarter results prove the company can GM is making significant investments in product effectively manage the business through a global development and manufacturing to accelerate progress economy under severe stress. This is a result of its toward an all-electric future. agility, and strong and growing franchises. During the quarter, GM delivered strong earnings and free cash During the quarter, GM announced it will power future flow, while it continued to invest in its EV and AV EVs with five interchangeable drive units and three growth initiatives, launched an all-new portfolio of full- motors, known collectively as Ultium Drive. Ultium size SUVs and maintained leading U.S. full-size truck Drive will help transition GM to an all-electric lineup, and large SUV market share. providing significant advantages in performance, scale, speed to market and manufacturing efficiencies. GM also announced it will be the first automaker to use a wireless battery management system for production electric vehicles. This allows over-the-air updates and eliminates the cost and weight of wiring. In October, the company unveiled the GMC HUMMER EV supertruck, its first EV powered by the Ultium battery system. It will be built at GM’s Factory ZERO, Detroit-Hamtramck Assembly Center, with production GMCGMC HUMMER EVEV beginning in late 2021. From kickoff to production, the LIQUIDITY AND COST SAVINGS UPDATE HUMMER EV represents the quickest vehicle Automotive liquidity was above target, ending the development program in GM’s recent history, an quarter at $37.8 billion. GM repaid $5.2 billion of its example of how the company is accelerating revolving credit facilities during the third quarter, and innovation and increasing its agility. an additional $3.9 billion in October. The company expects to repay the balance by year-end while GM also announced a $2 billion investment in its Spring maintaining a strong cash balance. GM achieved its Hill, Tennessee manufacturing plant, which will enable transformational cost savings target of $4.0 billion the site to transition to produce EVs, joining Factory since 2018, including $200 million in the quarter. GM ZERO and Orion Assembly. The Cadillac LYRIQ will be expects to continue making progress on the target the first EV produced at Spring Hill, and production of range of $4.0 to $4.5 billion through the end of the year. the Cadillac XT5 and XT6 will continue at the facility.

SEGMENT RESULTS (EBIT- ADJUSTED— $B) North America International Cruise GM Financial (EBT) Q3 20 Q3 19 Q3 20 Q3 19 Q3 20 Q3 19 Q3 20 Q3 19 4.4 3.0 0.0 (0.1) (0.2) (0.3) 1.2 0.7 Excluding the $(1.0) billion EBIT-adj. performance was due Cruise received a permit from EBT was positively impacted by impact of the 2019 strike, EBIT- to strong pricing, improved the California DMV to remove high used vehicle prices adj. improved primarily due to mix and the benefits from cost human backup drivers from contributing to gains on sale of continued cost actions and actions. China equity income Cruise AV test vehicles in San off-lease vehicles, stable credit disciplined incentives. GMNA was flat as volume and mix Francisco. Before the end of the performance and lower interest margins were 15 percent. offset unfavorable pricing and year, Cruise expects to deploy expense. regulatory costs. all-electric, driverless vehicles. Sales in the U.S. and China are recovering faster GM FINANCIAL DELIVERS STRONG RESULTS than many people expected, and GM is benefiting GM Financial (GMF) contributed to profitability while from robust customer demand for our new vehicles providing exceptional support to customers and dealers during these challenging times. Since its inception 10 and services, especially our full-size pickups and “ years ago, GMF continues to grow its share of the SUVs. These strong fundamentals and the positive financing business for both retail customers and impact of our transformation and austerity dealers; GMF had a GM U.S. retail penetration rate of 43 measures are helping us to deliver solid earnings, percent during the quarter and also became the generate significant cash and quickly repay the debt number one floorplan provider for GM dealers. Year-to- date GMF has paid $800 million in dividends to GM. we incurred during the early days of the pandemic.” – John Stapleton, Interim CFO GM INTERNATIONAL SALES GROWTH GM’s sales in China in the third quarter grew 12 percent year-over-year as the market continued its recovery. Buick and Cadillac performed strongly, with sales increasing 26 percent and 28 percent, respectively. The Wuling Hong Guang MINI EV became the best-selling EV model in China, and Buick started sales of the VELITE 7 all-electric SUV and VELITE 6 plug-in hybrid electric vehicle in the third quarter. In the next five years, more than 40 percent of GM’s new models in China will be new energy vehicles. 2021 Chevrolet Suburban Z71 In South America, GM sold nearly 123,000 vehicles in the quarter and the Chevrolet Onix was the best-selling RESURGENCE IN U.S. VEHICLE DEMAND vehicle in the region. U.S. sales improved sequentially each month within the quarter, driven by strong sales of crossovers, full-size pickups and large SUVs. The Chevrolet Blazer posted its ACCELERATING INNOVATION best quarter ever and the Cadillac XT6 was up 45 GM and Honda Motor Co., Ltd. signed a non-binding percent compared to last year. Despite tight inventory, memorandum of understanding toward establishing a GM’s large pickup trucks sold well, especially heavy- North American automotive alliance. The scope duty pickups. Through the third quarter, GM’s large includes a range of vehicles to be sold under each pickups gained 1.7 percentage points in retail market company’s brands, and cooperation in purchasing, share, leading the segment with 37.5 percent share (J.D. research and development, and connected services. The Power). GM’s all-new full-size SUVs are in high demand; companies plan to explore vehicle platform-sharing the Chevrolet Tahoe and Suburban, and GMC Yukon possibilities, along with propulsion systems and and Yukon XL gained three percentage points in retail advanced driver-assist features. This alliance would segment share since launching in the second quarter help realize significant cost savings, freeing up (J.D. Power). resources to invest in future mobility opportunities.

MEDIA CONTACTS INVESTOR CONTACT Lauren Langille Michael Heifler GM Finance Communications GM Investor Relations Media 931-398-8191 Investors 313-418-0220 lauren.langille@gm.com michael.heifler@gm.com David Barnas GM Finance Communications Media 248-918-8946 david.barnas@gm.com General Motors (NYSE:GM) is a global company committed to delivering safer, better and more sustainable ways for people to get around. General Motors, its subsidiaries and its joint venture entities sell vehicles under the Chevrolet, Buick, GMC, Cadillac, Holden, Baojun and Wuling brands. More information on the company and its subsidiaries, including OnStar, a global leader in vehicle safety and security services, can be found at http://www.gm.com. Cautionary Note on Forward-Looking Statements: This press release may include “forward-looking statements” within the meaning of the U.S. federal securities laws. Forward-looking statements are any statements other than statements of historical fact. Forward-looking statements represent our current judgement about possible future events and are often identified by words such as “anticipate,” “appears,” “approximately,” “believe,” “continue,” “could,” “designed,” “effect,” “estimate,” “evaluate,” “expect,” “forecast,” “goal,” “initiative,” “intend,” “may,” “objective,” “outlook,” “plan,” “potential,” “priorities,” “project,” “pursue,” “seek,” “should,” “target,” “when,” “will,” “would,” or the negative of any of those words or similar expressions. In making these statements, we rely upon assumptions and analysis based on our experience and perception of historical trends, current conditions, and expected future developments, as well as other factors we consider appropriate under the circumstances. We believe these judgements are reasonable, but these statements are not guarantees of any future events or financial results, and our actual results may differ materially due to a variety of factors, many of which are beyond our control. Many of these factors are described in our Annual Report on Form 10-K and our other filings with the U.S. Securities and Exchange Commission. We caution readers not to place undue reliance on forward-looking statements. Forward-looking statements speak only as of the date on which they are made, and we undertake no obligation to update publicly or otherwise revise any forward-looking statements, whether as a result of new information, future events, or other factors that affect the subject of these statements, except where we are expressly required to do so by law.