NEW YORK (CNN/Money) - General Motors Corp. reported it would not be able to report April sales as scheduled Monday due to a "major systems failure" with the computer system that its dealers use to report sales.

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The world's largest automaker did not give details of the system failure, other than to say it occurred Friday. It said because of the failure, GM gave dealers until 2:00 p.m. ET Monday to submit April deliveries. Spokeswoman Elaine Redd said that no other computer systems at GM were affected by the problem.

"No plants or production are halted," she said. A majority of GM dealers are not open Saturday, she said, so the sales information could not be collected until Monday.

The monthly sales report had been due out about 12:45 p.m. Monday, the same day that other automakers are set to report April sales.

Shares of GM (GM: Research, Estimates), a component of the Dow Jones industrial average, closed off 20 cents to $47.42 in Friday trading.