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Limited GPS reception
System performance may be adversely affected if GPS reception is
interrupted or interference occurs over a distance of several miles. The
following are possible causes for GPS reception being interrupted. If the
vehicle is:
• in multi-story parking garages
• in tunnels and under bridges
• inside or in between buildings
• by forests or tree-lined avenues
• in heavy rain showers and thunderstorms
• in valleys and in mountainous regions
• roads under cliffs
Ensure that you do not have any metal objects on the rear parcel shelf.
If your windows are tinted, ensure that you use non-metal tinting instead
of metal oxide tinting. Both of these factors can interrupt GPS reception.
Cleaning the display
Do not spray cleaning fluid directly onto the unit. Instead, spray onto a
soft cloth and gently wipe the unit. Only recommended products should
be used.
• Recommended products- Rubbing alcohol based cleaner (i.e., methyl
alcohol) or a damp clean cloth.
• Not harmful but not recommended- ammonia cleaner, neutral
detergent.
• Harmful to system and not recommended- acid cleaner, alkali cleaner,
benzene cleaner.
Do not clean any part of the system with benzene, paint thinner or any
other solvent.
Do not spill liquids of any kind onto the unit.
Loading the map DVD
• Your navigation DVD unit is located in the front lower center stack
area by the passenger’s feet (access door).
• Ensure that the vehicle ignition is ON.
• If a DVD is already loaded in the Navigation unit, push the eject
button.
• Load the DVD with the printed side up. Do not allow moisture or
foreign objects to enter the slot.
2004 Navigator (nav)
Owners Guide (post-2002-fmt)
USA English (fus)
Entertainment Systems
92
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