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.●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.
●Driving on a single lane road
alongside dense trees taller than
50 ft. (15 m) to the south of you.
Signal may be blocked by
mountains or large obstacles to
the south.Signal weaker in
these areas.
SATELLITE GROUND REPEATER
Playing the XM
®Radio (Models without navigation system)
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Fuel Economy Factors
The following factors can lower your
vehicle's fuel economy:●Aggressive driving (hard
acceleration and braking)●Excessive idling, accelerating and
braking in stop-and-go traffic●Cold engine operation (engines
are more efficient when warmed
up)●Driving with a heavy load or the air
conditioner running●Improperly inflated tiresImproving Fuel EconomyVehicle MaintenanceA properly maintained vehicle
maximizes fuel economy. Poor
maintenance can significantly reduce
fuel economy. Always maintain your
vehicle according to the maintenance
messages displayed on the information
display (seeOwner's Maintenance
Checks on page 541). For example:
●Use the recommended viscosity
motor oil, displaying the API
Certification Seal (see page 545).●Maintain proper tire inflation
－
An under-inflated tire increases
‘‘ rolling resistance, ’’which reduces
fuel economy.●Avoid carrying excess weight in
your vehicle －It puts a heavier
load on the engine, increasing fuel
consumption.●Keep your vehicle clean －In
particular, a build-up of snow or mud
on your vehicle's underside adds
weight and rolling resistance.
Frequent cleaning helps your fuel
economy.Drive Efficiently●Drive moderately －Rapid
acceleration, abrupt cornering, and
hard braking increase fuel
consumption.
●Observe the speed limit －
Aerodynamic drag has a big effect
on fuel economy at speeds above
45 mph (75 km/h). Reduce your
speed and you reduce the drag.
Trailers, car top carriers, roof
racks and bike racks are also big
contributors to increased drag.●Avoid excessive idling －Idling
results in 0 miles per gallon (0 kms
per liter).
CONTINUED
Fuel Economy
461
Before Driving
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