I am having issue with my forerunner 945 GPS. The distance has its showing is off quite a bit. How do you get calibrated?
Garmin recently responded to another post with this helpful article, https://support.garmin.com/en-US/?faq=z0n0KE1XVF0Pe4Su8QiZgA
However, for this it is often an issue with the watch, I would do a hard restart (left top button for 35sec until black screen, then power back on).
Also after green 'gps ready' wait another 2 minutes outside, holding still in an open area, before starting activity. Pause watch when stopped.
