LOS ANGELES — Just days after U.S. auto safety regulators stepped up a probe into the risk that more than 1 million Toyota Corolla and Matrix ... as replacement parts become available.

Toyota notifies the government ... about possible steering problems with 2009 and 2010 Corollas. "We are reviewing steering complaints with the Corolla," said NHTSA in a statement, "to determine ...

The National Highway Traffic Safety Administration (NHTSA) has received over 500 consumer complaints about the steering on 2009 and 2010 Toyota Corolla and Matrix vehicles, expressing concerns ...