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Compass Magnetic Variation Adjustment

WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

Magnetic variation adjustments are required when the compass displays a constant error in heading. Variation is the difference between magnetic north and true north due to geographical location.

  1. Locate your geographic location. Refer to the variation zone map.
    2. Fig 1: Identifying Zone Map
    GM9020Courtesy of GENERAL MOTORS CORP.
  2. Turn ON the ignition, with the engine OFF.
  3. Press the MODE button in order to advance to the COMPASS CALIBRATION mode.
  4. Press the SELECT button in order to display RESET CHANGES ZONE.
  5. Press the RESET button in order to advance to the proper zone number.
  6. Press the MODE button in order to enter and set the zone number.
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