Exhibit 99.1

NAVISTAR REPORTS THIRD QUARTER 2020 RESULTS

LISLE, Ill. — September 9, 2020 — Navistar International Corporation (NYSE: NAV) today announced a third quarter 2020 net loss of $37 million, or $0.37 per diluted share, compared to third quarter 2019 net income of $156 million, or $1.56 per diluted share.

Revenues in the quarter were $1.7 billion, down 45 percent from third quarter 2019, and Core (Class 6-8 trucks and buses in the United States and Canada) charge outs were down 53 percent. The decrease was primarily driven by the impact of COVID-19, as well as prior year comparable quarter results that were near the peak of the prior industry cycle.

Third quarter 2020 EBITDA was $73 million, compared to $281 million in third quarter 2019. Adjusted EBITDA in third quarter 2020 was $104 million versus $266 million a year ago. Adjusted net income for the quarter was a loss of $8 million compared to income of $147 million in the third quarter last year.

Navistar finished third quarter 2020 with $1.65 billion in consolidated cash, cash equivalents and marketable securities, including $1.6 billion in manufacturing cash, cash equivalents and marketable securities.

“Our fiscal third quarter opened during the middle of many stay-at-home orders and ended with sections of the economy beginning to reopen, and our results certainly reflect this,” said Persio Lisboa, president and chief executive officer, Navistar. “While marketplace uncertainties continue, we are accelerating the pace of progress on our Navistar 4.0 strategy for financial improvement, so we can pull forward its benefits and take full advantage of a stronger industry when it arrives.”

The company’s Navistar 4.0 strategy lays out a plan to increase the company’s EBITDA margins to 12 percent by 2024.

During the quarter, in addition to naming Lisboa president and chief executive officer and Troy Clarke to the new role of executive chairman, the company made several leadership changes aimed at accelerating the pace of the company’s Navistar 4.0 progress with a focus on opportunities in advanced technologies. These executive appointments included naming Bob Walsh vice president of Emerging Technologies, Strategy and Planning;

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appointing Friedrich Baumann president of Sales, Marketing and Aftersales; and adding new global responsibilities to the role of Phil Christman, president of Operations.

Earlier this year, the company took several actions to conserve cash and bolster its liquidity in response to the COVID-19 pandemic. These actions have been successful, as the company ended the third quarter with $1.6 billion of manufacturing cash, allowing it to cease its employee salary deferral program on September 1, several months earlier than initially planned. Additionally, actions taken due to the pandemic drove the company’s selling, general and administrative (SG&A) expenses down 29 percent year-over-year, after adjusting for a one-time gain in the prior year. Using learnings gained during COVID-19, the company is pursuing additional sustainable cost savings opportunities.

“We are targeting SG&A costs between 7 percent to 9 percent of revenues,” said Walter Borst, chief financial officer, Navistar. “Our focus has moved from temporary cash conservation actions to sustainable cost savings that support our Navistar 4.0 goals and better position us for profitability at all points in the cycle.”

With its new leadership, learnings from the COVID-19 pandemic and benefits from previous cost conservation actions in place, the company is redirecting more resources to advanced technologies; leading to several announcements during the quarter.

In autonomous, the company announced a strategic partnership with TuSimple to co-develop SAE Level 4 self-driving trucks targeted for production by 2024. The partnership also includes Navistar taking a minority stake in the company.

In connectivity, the company announced strategic partnerships with fleet management solutions providers Samsara and Geotab to allow International customers to seamlessly add their choice of fleet management solutions without the installation of additional vehicle hardware.

In electric, the company’s NEXT eMobility Solutions business unit signed a master services agreement with In-Charge Energy to provide charging infrastructure and consulting services to electric vehicle customers.

The company has been making progress on the construction of its production facility in San Antonio, which is scheduled to open in the spring of 2022. The facility will be capable of building both diesel and fully electric vehicles, and the first vehicle off the line will be an electric truck, entirely built on the main assembly line.

“As a result of the pandemic, we had the opportunity to revisit our investment portfolio and retime noncritical programs, and cancel others,” said Lisboa. “By streamlining our investments, we were able to free up significant capacity, which is being redeployed into advanced technology programs and strategic partnerships that accelerate our pace of progress.”

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SEGMENT REVIEW

Summary of Financial Results:

Truck Segment – In third quarter 2020, the Truck segment net sales were $1.2 billion, a 50 percent decrease compared to third quarter last year. The year-over-year decrease is primarily due to lower volumes driven by weaker industry conditions resulting in part from the COVID-19 pandemic.

The Truck segment incurred a net loss of $22 million in third quarter 2020 compared to a profit of $167 million in third quarter 2019. The year-over-year decrease was a result of lower volumes and a reversal of a non-recurring legal settlement charge in 2019.

Parts Segment – For third quarter 2020, the Parts segment net sales were $414 million, a 27 percent decrease from third quarter 2019. The decrease is primarily due to lower North America volumes attributable to the COVID-19 impact in the U.S. and Canada and a decrease in Blue Diamond Parts sales.

The Parts segments saw a third quarter profit of $97 million, compared to $149 million in third quarter 2019. The decrease is due to the impact of lower sales volumes, partially offset by lower SG&A expenses.

Global Operations Segment – In third quarter 2020, the Global Operations segment net sales decreased 48 percent to $47 million. The decrease was primarily driven by lower volumes in our South America operations triggered by temporary production stoppages related to COVID-19.

The Global Operation segment recorded a profit of $1 million in the third quarter of 2020 and 2019. The segment benefited from restructuring actions taken earlier this year.

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Financial Services Segment – In third quarter 2020, the Financial Services segment net revenues decreased to $49 million, a 34 percent decrease from third quarter 2019. The decrease was primarily driven by lower average yields due to lower interest rates and lower average finance receivables due to lower volumes.

The Financial Services segment recorded a profit of $10 million in the quarter, compared to $30 million in third quarter 2019. The decrease was primarily driven by the impact of lower revenues, partially offset by lower interest expense resulting from lower borrowing requirements.

About Navistar

Navistar International Corporation (NYSE: NAV) is a holding company whose subsidiaries and affiliates produce International^® brand commercial trucks, proprietary diesel engines, and IC Bus^® brand school and commercial buses. An affiliate also provides truck and diesel engine service parts. Another affiliate offers financing services. Additional information is available at www.Navistar.com.

Forward-Looking Statement

Information provided and statements contained in this report that are not purely historical are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (“Securities Act”), Section 21E of the Securities Exchange Act of 1934, as amended (“Exchange Act”), and the Private Securities Litigation Reform Act of 1995. Such forward-looking statements only speak as of the date of this report and Navistar International Corporation assumes no obligation to update the information included in this report. Such forward-looking statements include information concerning our possible or assumed future results of operations, including descriptions of our business strategy. These statements often include words such as “believe,” “expect,” “anticipate,” “intend,” “plan,” “estimate,” or similar expressions. These statements are not guarantees of performance or results and they involve risks, uncertainties, and assumptions. For a further description of these factors, see the risk factors set forth in our filings with the Securities and Exchange Commission, including our annual report on Form 10-K for the fiscal year ended October 31, 2019, which was filed on December 17, 2019, and our Quarterly Report on Form 10-Q for the period ended April 30, 2020. Although we believe that these forward-looking statements are based on reasonable assumptions, there are many factors that could affect our actual financial results or results of operations and could cause actual results to differ materially from those in the forward-looking statements. All future written and oral forward-looking statements by us or persons acting on our behalf are expressly qualified in their entirety by the cautionary statements contained or referred to above. Except for our ongoing obligations to disclose material information as required by the federal securities laws, we do not have any obligations or intention to release publicly any revisions to any forward-looking statements to reflect events or circumstances in the future or to reflect the occurrence of unanticipated events.

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Navistar International Corporation and Subsidiaries

Consolidated Statements of Operations

(Unaudited)

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Navistar International Corporation and Subsidiaries

Consolidated Balance Sheets

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Navistar International Corporation and Subsidiaries

Condensed Consolidated Statements of Cash Flows

(Unaudited)

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Navistar International Corporation and Subsidiaries

Segment Reporting

(Unaudited)

We define segment profit (loss) as net income (loss) attributable to Navistar International Corporation, excluding income tax benefit (expense). The following tables present selected financial information for our reporting segments:

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SEC Regulation G Non-GAAP Reconciliation

The financial measures presented below are unaudited and not in accordance with, or an alternative for, financial measures presented in accordance with U.S. generally accepted accounting principles (“GAAP”). The non-GAAP financial information presented herein should be considered supplemental to, and not as a substitute for, or superior to, financial measures calculated in accordance with GAAP and are reconciled to the most appropriate GAAP number below.

Earnings (loss) Before Interest, Income Taxes, Depreciation, and Amortization (“EBITDA”):

We define EBITDA as our consolidated net income (loss) attributable to Navistar International Corporation, net of tax, plus manufacturing interest expense, income taxes, and depreciation and amortization. We believe EBITDA provides meaningful information to the performance of our business and therefore we use it to supplement our GAAP reporting. We have chosen to provide this supplemental information to investors, analysts and other interested parties to enable them to perform additional analyses of operating results.

Adjusted EBITDA and Adjusted Net Income (loss):

We believe that adjusted EBITDA and Adjusted Net Income (loss), which excludes certain identified items that we do not consider to be part of our ongoing business, improves the comparability of year to year results, and is representative of our underlying performance. Management uses this information to assess and measure the performance of our operating segments. We have chosen to provide this supplemental information to investors, analysts and other interested parties to enable them to perform additional analyses of operating results, to illustrate the results of operations giving effect to the non-GAAP adjustments shown in the below reconciliations, and to provide an additional measure of performance.

Manufacturing Cash and, Cash Equivalents:

Manufacturing cash and cash equivalents represent the Company’s consolidated cash and, cash equivalents excluding cash and cash equivalents of our financial services operations. We have chosen to provide this supplemental information to investors, analysts and other interested parties to enable them to perform additional analyses of our ability to meet our operating requirements, capital expenditures, equity investments, and financial obligations.

Structural costs consist of Selling, general and administrative expenses and Engineering and product development costs.

EBITDA reconciliation:

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Adjusted EBITDA Reconciliation:

Adjusted Net Income (Loss) attributable to NIC:

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Manufacturing segment cash and cash equivalents reconciliation:

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