NBC News - General Motors' recall woes expanded Monday when the automaker announced it is recalling more than 3 million more older model cars for problems with the ignition.

The model years range from 2000 to 2014.

The automaker informed the National Highway Traffic Safety Administration that it was recalling the cars because a combination of too much weight on the key chain and a jarring event, such as hitting a pothole, could cause the ignition to rotate to the accessory position, shut off the engine and disable the power steering.

The automaker expects to take a charge of up to $700 million in the second quarter for the cost of recall-related repairs announced this quarter. That includes a previously disclosed $400 million charge.

The recall is part of a GM review of ignition switches after the company recalled 2.6 million older small cars earlier this year for a similar problem.

GM also is recalling 166,000 other cars for a series of problems.