Long press on the settings icon in notification bar. Then go I.to settings, go down to UI tuner and click on battery.
Pull down notification bar. Upper right corner there will be a settings gear. Hold it down until the phone vibrates. Go into settings and scroll to bottom. There will be a System UI Tuner. It will be in there. I have the Verizon Pixel and this is what I did. It is the same on all Pixels no matter where it came from.I don't have anything called UI tuner. Tried searching on the phone and nothing came up. Just curious if any other Verizon pixels have it showing up.