12-month NYSE trading in GM

General Motors Corp.'s auditors have raised "substantial doubt" about the troubled automaker's ability to continue operations, and the company said it may have to seek bankruptcy protection if it can't execute a huge restructuring plan.

The automaker revealed the concerns Thursday in an annual report filed with the U.S. Securities and Exchange Commission.

After the report was made public, GM said "the auditor's opinion has no impact on the aggressive actions we are taking to restructure our business for long-term viability."

Auditors from the accounting firm Deloitte & Touche LLP said in the report that "the corporation's recurring losses from operations, stockholders' deficit and inability to generate sufficient cash flow to meet its obligations and sustain its operations raise substantial doubt about its ability to continue as a going concern."

GM shares were down 17 per cent from Wednesday's close, off 39 cents to $1.81 US as of noon.

GM has received $13.4 billion in U.S. government loans as it tries to survive the worst auto sales climate in 27 years. It is seeking a total of $30 billion from the government. During the past three years it has piled up $82 billion in losses, including $30.9 billion in 2008.

In Canada, the company's Canadian subsidiary is seeking up to $7 billion Cdn in aid from the federal and Ontario governments. The industry has already received hundreds of millions in government handouts.

47,000 workers to lose jobs

The Detroit-based auto giant faces a March 31 deadline to have signed agreements of concessions from debt holders and the United Auto Workers union to show the government it can become viable again.

On Feb. 17, it submitted a restructuring plan to the U.S. Treasury Department that includes laying off 47,000 workers worldwide by the end of the year and closing five more U.S. factories.

The 47,000 jobs to be cut around the world include about 4,000 that will be cut in Canada over the next year — 2,600 at a truck plant in Oshawa, Ont. that will shut down this spring, and about 1,400 jobs with the closure of a transmission plant in the southwestern Ontario community of Windsor next year.

GM said in its filing that its future depends on successfully executing the plan.

"If we fail to do so for any reason, we would not be able to continue as a going concern and could potentially be forced to seek relief through a filing under the U.S. Bankruptcy Code," the Detroit-based automaker says in the annual report.

GM, the report says, is highly dependent on auto sales volume, which dropped rapidly last year. "There is no assurance that the global automobile market will recover or that it will not suffer a significant further downturn," the company writes.

GM has said it wants to avoid bankruptcy protection because it would scare off customers. Car buyers, the company has said, would be reluctant to buy from an automaker in Chapter 11 due to fears that it wouldn't be around long enough to honour warranties or make replacement parts.

GM, in its viability plan submitted to the U.S. Treasury last month, said it explored three bankruptcy scenarios, all of which would cost the government more than $40 billion US.

Chief operating officer Fritz Henderson said at the time that the government would be the only place the company could get financing for a Chapter 11 reorganization because credit markets are frozen.

The worst-case bankruptcy scenario would cost the government $100 billion, Henderson said, because revenue would severely drop due to a lack of sales.

He said there is not a lot of research about whether people would buy cars from an automaker in bankruptcy protection, but "that which is there suggests that sales fall off a cliff."

GM warned last month that its auditors may raise the "going concern" doubts, and industry analysts said auditors' statements may trigger clauses in some of GM's loans, placing them in default.

Haven't breached covenants, GM says

But the company says in its filing that it has received waivers of the clauses for its $4.5-billion US secured revolving credit facility, a $1.5-billion term loan and a $125-million secured credit facility. "Consequently, we are not in default of our covenants," the report said.

"If we conclude that there is substantial doubt about our ability to continue as a going concern for the year ending Dec. 31, 2009, we will have to seek similar amendments or waivers at that time."

GM spokeswoman Julie Gibson said there is no clause in the terms of the government loans that places the company in default if the auditors raise doubts about GM's ability to keep operating.

"That was not a condition of the loan. It's not in the agreement," she said.