Cadillac GPS Receiver - Manual (Page 61)

Black plate (61,1) Cadillac DTS Navigation System - 2011
Infotainment System 61
12/24 Format: Select the 12 screen
button for standard time; select the
24 screen button for military time.
Global Positioning
System (GPS)
The navigation system determines
the position of the vehicle by using
satellite signals, various vehicle
signals, and map data.
At times, other interferences such
as the satellite condition, road
configuration, the condition of the
vehicle and/or other circumstances
can interfere with the navigation
system's ability to determine the
accurate position of the vehicle.
The GPS shows the current position
of the vehicle using signals sent by
the GPS Satellites. When the
vehicle is not receiving signals from
the satellites, a symbol appears on
the map screen. Refer to Navigation
Symbols on page 32.
This system may not be available or
interferences may 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.
. After-market glass tinting has
been applied to the vehicle's
rear windshield.
Notice: Do not apply after-market
glass tinting to the vehicle's
windows. Glass tinting interferes
with the system's ability to
receive GPS signals and causes
the system to malfunction. The
window might have to be
replaced to correct the problem.
This would not be covered by the
warranty.
For more information if the GPS is
not functioning properly, see
Problems with Route Guidance on
page 62 and If the System Needs
Service on page 63.
Vehicle Positioning
At times, the position of the vehicle
on the map may be inaccurate due
to one or more of the following
reasons:
. The road system has changed.
. The vehicle is driving on slippery
road surfaces such as in sand,
gravel, and/or snow.
. The vehicle is traveling on
winding roads.
. The vehicle is on a long
straight road.
. The vehicle is approaching a tall
building or a large vehicle.
. The surface streets run parallel
to a freeway.