2010 GMC Sierra 1500 Crew Cab Owner's Manual - Page 349

Navigation/Radio System For vehicles with a navigation radio system, see the separate Navigation System manual. Audio System When using the in‐vehicle Bluetooth system, sound comes through the vehicle's front audio system speakers and overrides the audio system. Use the audio system volume knob, during a call, to change the volume level. The adjusted volume level remains in memory for later calls. To prevent missed calls, a minimum volume level is used if the volume is turned down too low. Bluetooth® Vehicles with a Bluetooth system can use a Bluetooth capable cell phone with a Hands Free Profile to make and receive phone calls. The system can be used while the key is in ON/RUN or ACC/ACCESSORY position. The range of the Bluetooth system can be up to 9.1 m (30 ft). Not all phones support all functions, and not all phones are guaranteed to work with the in-vehicle Bluetooth system. See www.gm.com/bluetooth for more information on compatible phones. Bluetooth Controls Use the buttons located on the steering wheel to operate the in‐vehicle Bluetooth system. See Audio Steering Wheel Controls on page 4‑148 for more information. Voice Recognition The Bluetooth system uses voice recognition to interpret voice commands to dial phone numbers and name tags. Noise: Keep interior noise levels to a minimum. The system may not recognize voice commands if there is too much background noise. When to Speak: A short tone sounds after the system responds indicating when it is waiting for a voice command. Wait until the tone and then speak. How to Speak: Speak clearly in a calm and natural voice. b g (Push To Talk) : Press to answer incoming calls, to confirm system information, and to start speech recognition. c x (Phone On Hook): Press to end a call, reject a call, or to cancel an operation. 4-125