OnStar Services

See also:

Operating UHP Using Voice Control
The voice control of the UHP system enables you to operate several functions of the mobile phone using your voice. The UHP system uses voice commands to control the system and dial phone n ...

Manual Reclining Seatbacks
WARNING! You can lose control of the vehicle if you try to adjust a manual driver seat while the vehicle is moving. The sudden movement could startle and confuse you, or make you push a p ...

Radio Messages for XM™ Only
See XM Radio Messages later in this section for further detail. ...