One problem related to gasoline engine has been reported for the 2004 Honda Civic Hybrid. The most recently reported issues are listed below.
The advertised mpg of my Honda hybrid for city driving is 48 mpg. I have never gotten better than 38 mpg. Honda says there's nothing they can do about it and just advertising that it will get 48 mpg doesn't mean it will get that actual mileage. I believe it should at least be close, not 20% less than advertised. I paid extra to buy a hybrid automobile that is supposed to perform much better than it does. False or misleading advertising for any consumer puchase should not be permitted, especially when it is a major purchase for an average consumer to make.