Cadillac 2005 XLR Owner's Manual page 232

While in North up mode, North will always be at the top
of the map screen regardless of which direction the
vehicle is traveling.
The shaded triangle indicates North. While in Heading
up mode, the direction your vehicle is traveling will
always be at the top of the map screen.
Touch either the North Up heading symbol or the vehicle
Heading Up symbol to alternate between settings.
4-38
This symbol indicates the
map with North up.
This symbol indicates the
map with the vehicle travel
direction up, or Heading up.
See Global Positioning System (GPS) on page 4-42 for
more information.
Touch the right or left arrow to scroll through the
entire name.
This symbol will appear
when the navigation
system is unable to receive
the GPS signal.
When a point of interest
(POI) or street address
name is too long to
be displayed, an arrow
will appear.