Honda Accord: Compass Operation

Compass operation can be affected by driving near power lines or stations, across bridges, through tunnels, over railroad crossings, past large vehicles, or driving near large objects that can cause a magnetic disturbance. It can also be affected by accessories such as antennas and roof racks that are mounted by magnets.

When you turn the ignition switch to the ON (II) position, the compass is self-calibrating, then the compass display is shown in the display.