Well darn. Learned something new. So I been running the truck letting the alternator do its thing. Testing the electrical lights and what not. After testing the mirror a c popped up. Looked in the ole manual and It says needs calibration. Gm programmed these to zone 8. I believe I'm zone 7. Anyways I never new any of this but now I know what to do whenever I can swing it around the block. If I'm not the only one heres some info
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