My dad's 2004 Civic Hybrid, bought new in 2003, displayed an IMA warning today. The dealer determined the battery pack needs to be replaced. The car is 7 years old with 77K miles, so it just barely failed within the 8 year/80K battery warranty. Honda is covering the replacement. 3K more miles and my dad would be looking at a $3500 repair bill or a new car. This brings the car's warranty repair tab up to about $8000. Honda replaced the CVT transmission a few years ago.