New or used? Talk to a dealer in your area that you'd want doing warranty work (and possibly get something in writing to back up what they say) I have heard bits on the news about Canadian dealers not honoring warranty for a new vehicle purchased and imported from the US. Apparently, there is a class-action lawsuit in the works against the Canadian Automotive Dealers Association over this whole warranty mess and high purchase costs.
Here's a little reading:
Canadians launch price fixing lawsuit against car manufacturers — The Garage