Lots of used Canadian trucks on the local Ford lots

I believe there is a difference if you buy new or used with waranty remaining. So if you bought the vehicle new of the lot in the US then took it into Canada or vise versa there wouldnt be a warranty , but if the vehicle was bought as a used vehicle that is still under warranty then it is valid. And it is also different from manufacturer to manufacturer. Thay each have thier own policies.