Toyota will soon be announcing plans to deal with braking problem in its Prius hybrid

Happening amid reports it's decided to recall latest model in Japan, a possible new embarrassment

Toyota has already had to recall 7M other cars in US, Europe, and China over sticky accelerators and floor mats

Toyota has told dealer in US it is preparing to repair brakes on thousands of Priuses there

Unclear whether Toyota planned a formal US recall

Toyota decided Saturday on recall in Japan covering its latest Prius model and notified domestic dealers, according to Japanese newspaper

Kyodo News agency said Toyota had started notifying dealers and that at least 170K vehicles in Japan would be subject to recall

Prius drivers in Japan and US have complained of a short delay before the brakes kick in

A flaw Toyota says can be fixed with a software programming change

The brake problem affects about 270K Priuses that were sold in US and Japan starting last May