GM admits it is on the edge

From GM's annual report (all emphasis added is mine):

There is substantial doubt about our ability to continue as a going concern.
Our independent public accounting firm has issued an opinion on our consolidated financial statements that states that the consolidated financial statements were prepared assuming we will continue as a going concern and further states that our recurring losses from operations, stockholders’ deficit and inability to generate sufficient cash flow to meet our obligations and sustain our operations raise substantial doubt about our ability to continue as a going concern. Our plans concerning these matters, including our Viability Plan, are discussed in Note 2 to the accompanying audited consolidated financial statements. Our future is dependent on our ability to execute our Viability Plan successfully or otherwise address these matters. 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.