2011 Chevrolet Silverado 1500 Regular Cab Owner's Manual - Page 267

Infotainment System 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. 7-49 Bluetooth Controls Use the buttons located on the steering wheel to operate the in‐vehicle Bluetooth system. See Steering Wheel Controls on page 5‑2 for more information. Press to answer incoming calls, confirm system information, and start speech recognition. Pairing Information . Up to five cell phones can be paired to the Bluetooth system. The pairing process is disabled when the vehicle is moving. Pairing only needs to be completed once, unless the pairing information on the cell phone changes or the cell phone is deleted from the system. Only one paired cell phone can be connected to the Bluetooth system at a time. If multiple paired cell phones are within range of the system, the system connects to the first available paired cell phone in the order that they were first paired to the system. To connect to a different paired phone, see "Connecting to a Different Phone" later in this section. . b / g (Push To Talk): . 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. c / x (Phone On Hook): Press to end a call, reject a call, or cancel an operation. Pairing A Bluetooth cell phone must be paired to the Bluetooth system and then connected to the vehicle before it can be used. See the cell phone manufacturer's user guide for Bluetooth functions before pairing the cell phone. If a Bluetooth phone is not connected, calls will be made using OnStar Hands‐Free Calling, if equipped. Refer to the OnStar Owner's Guide for more information. . .