That would all depend on the type of warranty?(bumper to bumper or drive train). When dealing with doors that are unlocked or unhooked replacement of the entire mechanism is the saftest way to do that. Example: your driving home and your driving and driving. Then you get home and unbuckle your seat belt and instead of pulling the latch the door just opens up.
I would have the whole latch assembly replaced. only keeping the handles (outside, and inside). Also when stuff like that happens it pays to inspect the door seals making sure nothing is damage or crushed flat over the years and usage of the Car.
I would have the whole latch assembly replaced. only keeping the handles (outside, and inside). Also when stuff like that happens it pays to inspect the door seals making sure nothing is damage or crushed flat over the years and usage of the Car.