g (Mute/Speech Recognition): Press and releasethis button to silence the vehicle speakers only.The audio of the wireless and wired headphones,if the vehicle has these features, does not mute. Pressand release this button again, to turn the sound on.• For vehicles with a navigation system, pressand hold g for two seconds to initiate speechrecognition. See “Speech Recognition” in theNavigation System manual for more information.• For vehicles without a navigation system, press andhold g for two seconds to interact with OnStar® orBluetooth (if equipped). See the OnStar® Systemon page 2-55, or Bluetooth® on page 3-111 for moreinformation about these features.• For vehicles with a navigation system and OnStar,press and hold g for two seconds then say“OnStar” to interact with the OnStar system.See the OnStar® System on page 2-55 for moreinformation.• For vehicles with a navigation system, Onstar, andBluetooth, press and hold g for two secondsand say “hands free” to interact with OnStar orBluetooth. See the OnStar® System on page 2-55,or Bluetooth® on page 3-111 for more informationabout these features.Radio ReceptionFrequency interference and static can occur duringnormal radio reception if items such as cell phonechargers, vehicle convenience accessories, and externalelectronic devices are plugged into the accessorypower outlet. If there is interference or static, unplug theitem from the accessory power outlet.AMThe range for most AM stations is greater than for FM,especially at night. The longer range can causestation frequencies to interfere with each other.For better radio reception, most AM radio stationsboost the power levels during the day, and then reducethese levels during the night. Static can also occurwhen things like storms and power lines interfere withradio reception. When this happens, try reducingthe treble on your radio.FM StereoFM stereo gives the best sound, but FM signals reachonly about 10 to 40 miles (16 to 65 km). Tall buildings orhills can interfere with FM signals, causing the soundto fade in and out.3-125
