2010 Buick LaCrosse Owner's Manual - Page 190

6-46 Infotainment System Ending a Call Turn the menu knob and select Hang Up. Bluetooth (Voice Recognition) 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 manufacturers 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 available. Refer to the OnStar owner's guide for more information. The pairing process can be started by using the voice recognition system or the controls on the infotainment system. Pairing Information: . Up to five cell phones can be paired to the Bluetooth system. The pairing process is disabled when the vehicle is moving. The Bluetooth system links with the first available paired cell phone in the order the phone was paired. Only one paired cell phone can be connected to the Bluetooth system at a time. Pairing only needs to be completed once, unless the pairing information changes or the phone is deleted. Muting a Call To Mute a Call Turn the menu knob and select Mute Call. To Cancel Mute Turn the menu knob and select Mute Call. . . . Dual Tone Multi-Frequency (DTMF) Tones The in‐vehicle Bluetooth system can send numbers during a call. This is used when calling a menu driven phone system. 1. Turn the menu knob and select Enter Number. 2. Enter the character sequence, see "Entering a Character Sequence" in Operation on page 6‑7 for more information. . To link to a different paired phone, see Linking to a Different Phone later in this section.