AM radio reception
AM signals, because of their low frequency, can bend around objects and skip along the ground. In addition, the signals can be bounced off the ionosphere and bent back to earth. Because of these characteristics, AM signals are also subject to interference as they travel from transmitter to receiver.
Fading: Occurs while the vehicle is passing through freeway underpasses or in areas with many tall buildings. It can also occur for several seconds during ionospheric turbulence even in areas where no obstacles exist.
Static: Caused by thunderstorms, electrical power lines, electric signs and even traffic lights.
See also:
DOOR position
When the switch is in the DOOR position 2
the map lights will illuminate under the following
conditions:
- ignition switch is turned to the LOCK
position
— remain on for about 15 seconds. ...
General maintenance
During the normal day-to-day operation of the
vehicle, general maintenance should be performed
regularly as prescribed in this section. If
you detect any unusual sounds, vibrations or
smells, ...
Air pollution
Industrial pollution, the presence of salt in the air
in coastal areas, or heavy road salt use accelerates
the corrosion process. Road salt also accelerates
the disintegration of paint surfaces. ...