See also:

Satellite Radio
Vehicles with an XM™ Satellite Radio tuner and a valid XM Satellite Radio subscription can receive XM programming. ...

Daytime Running Lamp (DRL) (Uplevel)
1. From the back side of the headlamp assembly, remove the bottom cap to replace the DRL bulb. 2. Disconnect electrical connector. 3. Remove the DRL bulb socket from the headlamp assembly. 4. ...

Using Voice Commands During a Planned Route
Cancel Route 1. Push . System responds: “OnStar ready,” then a tone. Say “Cancel route.” System responds: “Would you like to cancel route directions to your destination?” 2. Say “Yes.” System re ...