I'm in California.
My 2004 Honda Civic Hybrid AT-PZEV with CVT came with a 3 yr, 36,000 mile bumper to bumper warranty.
But on all the hybrid-related stuff (70 items are on the list) there is a 15 year or 150,000 mile warranty.
The IMA Battery Assembly has a 10 year 150,000 mi warranty.

Note: These came FREE with this version of the HCH.
I said, "No!" to all warranty extensions.
I think the 03s sold in California had an 8 year 100K battery warranty.

I think this is better than the non AT-PZEVs that are sold in most of the country.
AZ-PZEVs are sold in California Vermont, mass, Maine, I think.
The rest of the country gets a SULEV I think, with a larger gas tank and higher emmisions.
And isn't your Batter warranty only 8 year 80,000 mi?
I think the AT-PZEVs is the lowest emmisions of all cars that uses gas.

Which model do you have? SU?LEV or AT-PZEV?
Which state did you buy it in?
How long is the IMA battery warranty?
How long is the rest of the hybid system warranty?

Need fewer troops to support.
Drive a hybrid.
Best tank 71.65 MPG.

Before this car I spent two years learning hypermiling on my 2004 HCH1.