2010-lexus-gx-460-2.jpgToyota Motor Corporation will begin a recall of some Lexus models in Japan after saying engines in as many as 270,000 vehicles worldwide may have defective valve components that can cause problems including stalling.

Toyota spokeswoman Ririko Takeuchi, told reporters the company will notify Japan’s transport ministry of the recall on July 5.

“Toyota will take similar required action in the other markets where these vehicles are sold,” said company spokesman, Paul Nolasco.

Toyota, the world’s largest automaker, is working to restore its reputation for quality after recalls of about 8 million vehicles globally for defects linked to unintended acceleration.

The company recalled about 13,000 Lexus GX 460 sport-utility vehicles in April after Consumer Reports labeled the model a “safety risk” because it could roll over.

The designation was removed in May.

“Toyota’s latest recall may further fuel the carmaker’s drop in market share in the United States,” said Masatoshi Nishimoto, a Tokyo-based analyst at consulting company IHS Automotive.

He also said, “While sales are rising as the market recovers from the recession, they are already losing share to U.S. and other Asian carmakers.”

The latest recall may cost the carmaker an estimated 20 billion yen ($228 million), the Asahi newspaper reported today.

The Toyota City, Japan-based company said last week it would recall hybrid Lexus HS250h sedans because of a fuel-leak risk.

Toyota, which paid a record fine of $16.4 million this year for not complying with auto-safety regulations, last week said it would recall the HS250h after too much gasoline spilled in U.S. government crash tests, posing a fire risk.

Separately, Toyota has completed repairs on more than 4 million, or 78 percent, of U.S. vehicles recalled this year for issues linked to unintended acceleration.