See also:

Passing
More passing distance is needed when towing a trailer. The combination will not accelerate as quickly and is longer so it is necessary to go much farther beyond the passed vehicle before returning ...

XM Categories
XM channels are organized in categories. Removing or Adding Categories Channels in a category that have been removed can still be accessed by using the SEEK or SEEK buttons, or the TUNE knob. ...

Engine Cooling When Trailer Towing
The cooling system may temporarily overheat during severe operating conditions. See Engine Overheating. ...