Toyota will replace seat belts in both front seats, which can become jammed inside the holding due to a faulty part, it said.
No accidents have been reported due to the defect, it said.
Toyota, close to overtaking General Motors Corp. as the world's No.1 seller of automobiles, has sold 9,600 Lexus in Japan since it ushered in the 16-year-old Lexus brand to its home market in August 2005 in what it said is a major step towards taking on top luxury marques everywhere else.
It did not disclose estimated recall costs.
REUTERS PV HT1618