Cadillac 2010 STS Owner's Manual

Also see for 2010 STS: Brochure Owner's manual

Radio ReceptionFrequency interference and static can occur duringnormal radio reception if items such as cell phonechargers, vehicle convenience accessories, andexternal electronic devices are plugged into theaccessory power outlet. If there is interference or static,unplug the item from the accessory power outlet.AMThe range for most AM stations is greater than for FM,especially at night. The longer range can cause stationfrequencies to interfere with each other. For better radioreception, most AM radio stations boost the powerlevels during the day, and then reduce these levelsduring the night. Static can also occur when things likestorms and power lines interfere with radio reception.When this happens, try reducing the treble on the radio.FM StereoFM signals only reach about 10 to 40 miles(16 to 65 km). Although the radio has a built-in electroniccircuit that automatically works to reduce interference,some static can occur, especially around tall buildingsor hills, causing the sound to fade in and out.XM™ Satellite Radio ServiceXM Satellite Radio Service gives digital radio receptionfrom coast-to-coast in the 48 contiguous United States,and in Canada. Just as with FM, tall buildings or hillscan interfere with satellite radio signals, causing thesound to fade in and out. In addition, traveling orstanding under heavy foliage, bridges, garages,or tunnels may cause loss of the XM signal for aperiod of time.Cellular Phone UsageCellular phone usage may cause interference with thevehicle's radio. This interference may occur whenmaking or receiving phone calls, charging thephone's battery, or simply having the phone on. Thisinterference causes an increased level of static whilelistening to the radio. If static is received while listeningto the radio, unplug the cellular phone and turn it off.4-136