The company restated its initial quarterly report as a public company and included a "material weakness" in its financial controls.

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In 2009, significant activities were performed in remediating the material weakness.

FORBES: Numbers At General Motors Just Don't Add Up

In our 2009 Annual Report on Form 10-K, we identified a material weakness because we did not maintain effective controls over the period-end financial reporting process.

FORBES: Numbers At General Motors Just Don't Add Up