"The $13.4 billion is consistent with what we asked for through the first quarter under our downside market scenario, which is the way the market is running," Wagoner told reporters at the Detroit auto show.

Wagoner indicated GM could still seek additional funding after a March review with U.S. officials intended to assess its progress in restructuring talks with its major union and bondholders.

"We will obviously review the whole plan and at that point we'll see what requirements are. But for now we think we're well covered through the period we asked to be provided," Wagoner said.

(Reporting by Kevin Krolicki)