Cologne:Tsutomu Tomita, chief of Toyota's Formula One team, is stepping down at the end of June.
Tomita will be replaced by Tadashi Yamashina, current Toyota Motorsport vice chairman, the Cologne-based team said Thursday.
Toyota is still looking for its first Formula One win.
Tomita, 63, has been based at Toyota Motorsport's headquarters in Cologne since 2003. "As is normal for Toyota senior executives following a long overseas assignment, he will return to Japan in the middle of the year where new assignments await him within the Toyota group of companies," the team statement said.
Tomita said it had been "one of the most challenging and exciting periods of my career.
"I am looking forward to celebrating Toyota's first victory in Formula One which I believe will happen sooner rather than later."
Yamashina joined Toyota Motorsport as vice chairman in December 2006.