Vehicle Positioning - Cadillac 2010 SRX Navigation System Owner's Manual

74 Infotainment System
This system might not be available
or interferences can occur if any
of the following is true:
•
Signals are obstructed by tall
buildings, trees, large trucks,
or a tunnel.
•
Objects are located on the rear
shelf of the vehicle.
•
Satellites are being repaired or
improved.
For more information if the GPS is
not functioning properly, see If
the system needs service and
Problems with Route Guidance.

Vehicle Positioning

At times, the position of the vehicle
on the could be inaccurate due
to one or more of the following
reasons:
•
The road system has changed.
•
Driving on slippery road surfaces
such as in sand, gravel
and/or snow.
•
Traveling on winding roads or
long straight roads.
•
Approaching a tall building or a
large vehicle.
•
The surface streets run parallel
to a freeway.
•
The vehicle has been transferred
by a vehicle carrier or a ferry.
•
The current position calibration is
set incorrectly.
•
Traveling at high speed.
•
The vehicle changes directions
more than once, or when the
vehicle is turning on a turn table
in a parking lot.
•
The vehicle is entering and/or
exiting a parking lot, garage
or a lot with a roof.
•
The GPS signal is not received.
•
A roof carrier is installed on
the vehicle.
•
Tire chains have been installed.
•
The tires are replaced or worn.
•
The tire pressure for the tires is
incorrect.
•
The first navigation use after the
map data is updated.
•
The battery is disconnected for
several days.
•
The vehicle is driving in heavy
traffic where driving is at low
speeds, and the vehicle is
stopped and started repeatedly.