2011 Honda Odyssey Owner's Manual - Page 267

Playing the XM Radio (EX-L model without navigation system) The XM satellites are in orbit over the equator; therefore, objects south of the vehicle may cause satellite reception interruptions. To help compensate for this, ground-based repeaters are placed in major metropolitan areas. Satellite signals are more likely to be blocked by tall buildings and mountains the farther north you travel from the equator. Carrying large items on a roof rack can also block the signal. Depending on where you drive, you may experience reception problems. Interference can be caused by any of these conditions: Driving on the north side of an east/west mountain road. Driving on the north side of a large commercial truck on an east/west road. Signal may be blocked by mountains or large obstacles to the south. Signal weaker in these areas. SATELLITE GROUND REPEATER Driving in tunnels. Driving on a road beside a vertical wall, steep cliff, or hill to the south of you. Driving on the lower level of a multi-tiered road. Large items carried on a roof rack. Driving on a single lane road alongside dense trees taller than 50 ft. (15 m) to the south of you. 264 2011 Odyssey