The Nexus 6P is one of those phones that had high initial quality, but it hasn’t withstood the test of time very well. This phone has been plagued by battery issues that cause it to randomly shut off. Those who bought their phones from the Google Store have reported success not only with getting the phone replaced, but replaced with a Pixel XL.
There have been sporadic reports for months of 6P owners getting Pixels back from Google, but now it seems like a near certainty in some places.
Google is offering Nexus 6P owners a Pixel XL as a warranty replacement was written by the awesome team at Android Police.