GM offers a 12/12 warranty on non-Cadillac CPO models. Is the 12/12 added to the end of the factory warranty or concurrent with the factory warranty? For example, if you buy a 2 year old CPO Buick with 20K miles that has a 4/50 factory warranty, do you now have a 5/62 warranty or effectively a 4/50K warranty?

GM offers a 12/12 warranty on non-Cadillac CPO models. Is the 12/12 added to the end of the factory warranty or concurrent with the factory warranty? For example, if you buy a 2 year old CPO Buick with 20K miles that has a 4/50 factory warranty, do you now have a 5/62 warranty or effectively a 4/50K warranty?


Nope they both start at the same time. My car was not a cpo car because I bought it from a chevy dealer but its still under the manufactures warranty till nex year some time. Dealer threw in a GM 3year36,000 mile plan on top of that which started the day I took the car off the lot. I guess I am double covered lol.