Toyota has announced a voluntary recall of some 740,000 vehicles in the United States to address a potential leak problem with a seal in the brake master cylinder. The models that are being recalled in the U.S. are the 2005-2006MY Toyota Avalon, 2004-2006MY Highlander (non Hybrid) and Lexus RX330, and 2006 Lexus GS300, IS250, and IS350. Another 600,898 vehicles were recalled in Japan and approximately 200,000 in China for the same issue.