Toyota Motor Corporation is expected to announce preliminary findings of its investigation today into the sudden, high-speed acceleration of a Toyota Prius last week in San Diego, California.

As Congress investigates the faulty brake problem with some Toyota vehicles, the Japanese carmaker has pledged to help inconvenienced New Yorkers.

Toyota's CEO Akio Toyoda faced more than four hours of questioning today at a House committee investigating the recall of more than 6 million vehicles in the U.S. 

The hearing is scheduled for next week. Earlier this week, Akio Toyoda had not planned to attend the hearing about his car company's safety.

The carmaker hasn't figured out what's causing the problematic power-steering in Corollas yet.

The recall is due to air bags that can inflate with too much pressure, causing the inflator to rupture and injure or kill the driver.

The recall is official: Toyota is recalling about 437,000 Prius and other hybrids worldwide for brake problems.

Meanwhile, the carmaker may recall 270,000 Prius hybrids over brake issues. 

The department opened its investigation into the 2010 model of the hybrid this morning.

More than 100 complaints are on file in the U.S. and Japan involving brakes in the Prius.

A small steel shim the size of a postage stamp is all Toyota says it will take to fix its sticky gas pedal problem. Once the parts arrive and the technicians are trained, the company says it's a repair job that takes about a half hour.

Faulty gas pedals prompted the company to suspend U.S. sales and production of the models.