2009 Acura MDX Owner's Manual - Page 192
2009 Acura MDX Manual
Page 192 highlights
Main Menu ® Table Of Contents Playing the XM Satellite Radio (Models without navigation system) ''NO SIGNAL'' - The signal is currently too weak. Move the vehicle to an area away from tall buildings, and with an unobstructed view of the southern horizon The selected channel number does not exist, or is not part of your subscription, or this channel has no artist or title information at this time. ''ANTENNA'' - There is a problem with the XM antenna. Please consult your dealer. SATELLITE Signal may be blocked by mountains or large obstacles to the south. Signal weaker in these areas. GROUND REPEATER 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. 188 2009 MDX