Assalam u alaekum,
My prius 2010 Is displaying CHECK HYBRID SYSTEM error, i went to the mechanic and he removed errors with the scanner and the error gone, but again after few days the error returned with a yellow color hazard signal and yellow color hand brake type of signal, when this error comes, my car doesnt go to hybrid mode and runs normally on petrol. Some one said it battery pack issue. But im not convinced.... Any experienced person ? Thanks.