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General Information
For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people. Genuine GM parts have one of these marks: ...

Traffic Options (US and Canada)
Read the following Options descriptions to understand how the XM NavTraffic™ operates. ...

Transmission
Driver Shift Control (DSC) Driver Shift Control (DSC) allows you to shift an automatic transmission similar to a manual transmission. To use the DSC feature: 1. Move the shift lever to the left ...