Dude. You're never gonna be happy with the truck if you have these concerns early on. If something goes wrong with it in 2 years you'll be thinking "What if this was caused by it not being broken in properly".

Of course, if you've signed your papers and have walked with the car you are probably screwed. Unless Canadian law differs from the US.

Take the damn thing back and get one with less miles (KMs) and quit your bitching about it is my view.