Compass: Description and Operation

Electronic Compass

The compass display is on with the key in the ON or START positions. When the key is first turned to the ON or START position, there is a momentary delay of approximately 6 seconds before the compass display illuminates. If the battery saver has been activated and the key is turned to ON or START, the momentary delay before the compass display illuminates is approximately 3 seconds. The compass display turns off as soon as the key is turned to the OFF or ACC position.

With Navigation

The compass display is incorporated into the Front Display Interface Module (FDIM). Refer to Information and Entertainment Systems Description and Operation.

The compass signal originates from the Global Positioning System (GPS) antenna. No calibration or zone adjustment is available, as the compass heading is based on the GPS signal. Refer to Information and Entertainment Systems Description and Operation.

The vehicle heading is displayed as a 1 or 2 character display located in the upper RH side of the FDIM and indicates the current direction of the vehicle (N, NE, E, SE, S, SW, W, or NW).

Without Navigation

The compass display is incorporated into the FDIM. The compass signal originates from the compass module, which is integrated into the interior rear view mirror. Refer to Rear View Mirrors Description and Operation.

The vehicle heading is displayed as a 1 or 2 character display located in the lower LH side of the FDIM and indicates the current direction of the vehicle (N, NE, E, SE, S, SW, W, or NW). The compass continuously re-calibrates due to changes in the magnetic field and remains accurate during most driving conditions.

The Front Controls Interface Module (FCIM) buttons that allow the driver to operate (change) the calibration and zone setting procedures are located below the FDIM.

Compass Accuracy

Without Navigation

Driving near power lines, or driving in the area of large iron or steel structures can temporarily change the compass heading. If the compass remains inaccurate after driving near such objects, calibrate the compass. Refer to Compass Calibration Compass Calibration.

Most geographic areas (zones) have a magnetic north compass point that varies slightly from the northerly direction on maps. This variation is 4 degrees between the adjacent zones and becomes noticeable as the vehicle crosses multiple zones. A correct zone setting eliminates the error. Refer to Compass Zone Adjustment Compass Zone Adjustment.

With Navigation

Driving near power lines, or driving in the area of large iron or steel structures have no effect on the compass heading.

Compass calibration and compass zone setting procedures are not required if the vehicle is equipped with navigation.