The chain of recall issues that Toyota has been facing this year appears yet to be broken as the world's number one carmaker announced this week that up to 1.5 million car models need to be rechecked for possible brake system failure.

The Japanese automotive firm announced that more than a million Lexus, Avalon and some other models rolled out earlier this year would be recalled in order to fix identified issues on the vehicles' brake master cylinder.

Toyota said that the brake system glitch could possibly lead to weaker braking traction, a problem that could result to accidents, even fatal ones, which have been the nagging issues that perennially plague the carmaker for some years now.

A new round of recall advisories have been made public for Toyota models marketed in the United States, Europe, China, Japan and the Asia-Pacific region but representatives of Toyota Australia maintained that the announcement was still under evaluation for cars assembled in the country.

Toyota Australia told AAP on Friday that its Japanese parent company formally admitted that some 30,000 Toyota models would be recalled in Australia as part of the global recheck but a company spokeswoman clarified that the advisory was still under careful consideration.

She said that Toyota Australia has yet to officially adopt the global recall advisory issued by its Japanese parent company, adding that "we're investigating a slow brake fluid leak from the brake master cylinder that results in the brake warning light illuminating on some Toyota and Lexus models."

Following the general announcement made by Toyota headquarters in Japan, Toyota Australia insisted that it has to observe its own internal procedures prior to issuing its own recall advisories as the spokeswoman explained that "we are still considering whether it will be a recall or some other field action."

After it has fully determined the necessary actions for its Australian customers, Toyota Australia assured that a formal announcement should be revealed by late Friday, in which car owners would be duly advised on appropriate steps to be taken in having their vehicles repaired by local dealers.