"They have very similar braking systems and we are currently checking whether they have the same problem,” Toyota spokeswoman Ririko Takeuchi said according to Autonews. “Nothing has been decided.”
The HS, which is the first dedicated hybrid in Lexus' line-up, went on sale last year and so far retailed 6,699 units, according to data provided by Autonews. The Toyota Sai, which is a version of the HS, may also be subject to review.
Toyota is said to announce another voluntary recall this week, this time regarding the Prius. Toyota confirmed on Friday the Prius is subject to antilock brake system glitches, to which a fix has already been found and implemented in vehicles manufactured starting January this year.
The National Highway Traffic Safety Administration (NHTSA) also announced last week it is opening a formal investigation of the 2010 Toyota Prius. According to the NHTSA, the main goal of the investigation is to find out whether allegations that the Prius experiences momentary loss of braking capability while traveling over an uneven road surface, pothole or bump.
The Prius issue prompted Akio Toyoda, the company's CEO, into formally apologizing last week.
"I would like to take this opportunity to apologize from the bottom of my heart for causing many of our customers concern after the recalls across several models in several regions."