2013 Acura TL Owner's Manual - Page 390

AM/FM Radio Reception This device complies with the appropriate requirements or the required standards. See page 628 for more information. Features Radio signals, especially on the FM band, are deflected by large objects such as buildings and hills. Your radio then receives both the direct signal from the station's transmitter, and the deflected signal. This causes the sound to distort or flutter. This is a main cause of poor radio reception in city driving. Radio reception can be affected by atmospheric conditions such as thunderstorms, high humidity, and even sunspots. You may be able to receive a distant radio station one day and not receive it the next day because of a change in conditions. Electrical interference from passing vehicles and stationary sources (such as garages or parking structures) can cause temporary reception problems. 386 2013 TL