2010 Nissan Altima Owner's Manual - Page 87

● If a magnet is located near the compass or the vehicle is driven where the terrestrial magnetism is disturbed, the compass display may not indicate the correct direction. ● In places where the terrestrial magnetism is disturbed, the correction of the direction starts automatically. Inaccurate compass direction: The compass display is equipped with automatic correction function. If the correct direction is not shown, follow this procedure. 1. With the display turned on, press and hold switch for about 9 seconds. The the display will read "C." 2. Calibrate the compass by driving the vehicle in three complete circles at a maximum speed of 5 MPH (8 km/h). 3. After completing the circles the display should return to normal. ● If the compass deviates from the correct indication soon after repeated adjustment, have the compass checked at an authorized NISSAN dealer. WIC0355 2-8 Instruments and controls