Compass Magnetic Variation Adjustment

WARNING: This page is about a different car, the 2003 Saturn Vue. 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.

Fig 1: World Magnetic Variation Map

Courtesy of GENERAL MOTORS CORP.

Locate your current geographic location on the World Magnetic Variation Map.
Turn ON the ignition, with the engine OFF.
Press and hold the on/off switch for the compass until a zone number appears on the compass display.
Depress the switch for the compass to select the desired zone number.
Wait 5 seconds. The display will return to a compass heading. The variance procedure is now complete.
Calibrate the compass. Refer to Compass Calibration mentioned above.