See also:

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

Language
Select the Language menu and the following will be displayed: - English - French - Spanish Turn the MENU/SELECT knob to select the language. Press the knob to confirm and go back to the last ...

Following Distance
Stay at least twice as far behind the vehicle ahead as you would when driving the vehicle without a trailer. This can help to avoid situations that require heavy braking and sudden turns. ...