Cadillac 2005 XLR Owner's Manual page 224

Intersection
This destination entry method allows you to select a
destination by inputting the intersecting roads you wish
to travel to.
To enter an intersection, do the following:
1. Touch the Intersection symbol.
2. Using the alpha keypad, enter the name of the first
street in the intersection.
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3. To view a list of choices, touch List or continue to
spell the name to further reduce the list of available
items. The system will display a list of the
intersecting streets if the number of intersecting
streets is five or less.
4. Select the first street.
5. Now enter the second street name.
6. Select the second street name from the list of
intersecting streets. To view a list of choices,
touch List or continue to spell the name to further
reduce the list of available items. The system
will display a list of intersecting streets if the number
of intersecting streets is five or less.
If there are multiple intersections with the same two
roads, the system will display a list of cities to
choose from. Choose a city from this list. A map
with the intersections for that city will appear.
7. Touch Enter to plan your route.