Compass zone and Calibration

Can anyone tell me how to calibrate the compass on the auto dimming mirror on a 2004 Saturn Vue? I don't have the manual, so I don't know what zone to set it to for Western NY. Thank you.

depending on how "west" you are talking about, it is either 10(very western tip), or 11. Press and hold the Comp button until it reads CAL.(about 6 seconds) then press and hold it again until a number appears.(about 5 seconds) Then press the Comp button until your zone number appears.(10 or 11) Once your zone number appears, wait and it will display a compass direction in a few seconds.