This was never officially confirmed or announced by Google, but rather it seemed to stem from user reports in which there were some who were lucky enough to replace Pixel XL handsets as replacements. Unfortunately it seems that Google has decided to put an end to this replacement program.
In a post on Reddit, a user by the name of Poryhack claims that when they tried to get a replacement for the Nexus 6P, they were told that Google has since changed their policies and will no longer be offering a replacement. The rep that Poryhack got in touch with was quoted as saying, “Since the device is out of warranty and hence we would not be able to replace the device for you. We had replaced some of the device earlier but the policies have changed now. We’ve re-evaluated our servicing policies and cannot provide a replacement for your issue.”
This is rather disappointing for Nexus 6P owners who are stuck with a faulty device. In fact earlier this year there was a class-action lawsuit filed against Google and Huawei over the Nexus 6P bootloop issues, and this change in policy is certainly not going to win them any fans.