Honda Motor Co. has issued a recall for more than an estimated 2 million vehicles in the United States and China due to transmission software issues that need to be upgraded.

The American cars affected include 4-cylinder Accord models from 2005 through 2010. The Accord happened to be Honda’s best-selling vehicle this previous month, followed by the Civic.

Honda CR-V’s from year 2007 through 2010, as well as Honda Elements from 2005 through 2008, are also affected by the recall.

The transmission problem involves drivers shifting from reverse, to neutral, then drive, as when ‘rocking’ a car to free it when it’s stuck in mud or snow. This sequence can damage a bearing in the automatic transmission system, according to Honda, which can cause the engine to stall, or make the parking gear difficult to use. Honda will update the transmission control software in the vehicle to fix the problem.

In China, Honda plans to recall over 760,000 Accords, Odysseys and Spirior cars.

Honda will begin contacting owners starting August 31. No injuries or deaths have been reported as a result of this issue.