I think it will be 8 years 100K miles warranty on the battery. I will be curious to see if they warranty 80% or 70% battery life? Past GM BEV batteries hold up well.What do you guys think? Will GM offer an extended baterry warranty? Id asume 3 years 36k miles on the truck itself. Our Lexus hybrid has a 10 year warranty on the battery. I asked why, and the dealer told me so many people were scared of battery replacement that they put a big warranty on them to get people to buy them. If this new battery GM is using only has the basic GM warranty, Im kinda concerned on how long it will last and how much is battery replacement?