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Positioning capability temporarily degraded after
battery reconnect
When your vehicle is started, the Lincoln RESCU
GPS receiver begins the process of determining
vehicle location. The receiver will search the sky
and attempt to acquire signals from all visible
satellites. A real-time clock and an almanac
containing detailed information about the satellite
constellation are stored in the on-board computer's
memory and are used to expedite the search. If the
vehicle's battery is disconnected, the clock memory
is erased and time and date are lost. Once the
battery is reconnected, it could take approximately
15 minutes to reacquire the clock and for
positioning capability to be restored. During this
time, the system will operate but the response center
will not be able to identify your location. In this
situation, the operator will depend on you to
provide verbal information regarding vehicle
location.
154
Inoperative if cellular signal marginal or
unavailable
Since the Lincoln RESCU System utilizes the
vehicle's cellular phone, it can only be operated
in geographical areas with cellular coverage.
Although approximately 90 percent of the U.S.
population lives and works in cellular coverage
areas, there are various rural or mountainous
areas where coverage is marginal or does not
exist. If an activation occurs in this situation,
the messages "NO CELLULAR SIGNAL" and
"WAITING TO ACQUIRE" will alternately be
displayed on the Message Center. If after
several attempts cellular service cannot be
acquired, the message "UNABLE TO PLACE
CALL" will be displayed, the assistance request
wfll be terminated and the phone will return to
its normal operating mode.
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