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Home >> Hummer >> 2010 >> H3T Base, Automatic >> Repair and Diagnosis >> General Information >> Reset Procedures >> Programming And Setup >> Repair Instructions >> Inside Rearview Mirror Programming and Setup >> Compass Calibration and Variance Procedures
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Compass Calibration and Variance Procedures

When the inside rearview mirror with compass is replaced, the compass must be setup utilizing the Compass Calibration and Magnetic Variance .