Cadillac 2008 CTS Navigation System Owner's Manual page 51

To view the traffic condition location and information
on the map:
1. Press the NAV key, then press the NAV key
repeatedly until Traffic is selected, or touch the
Traffic screen button. A list of traffic conditions may
display with the direction and how far away the traffic
conditions are from your vehicle's current position.
2. Select a traffic condition to view it on the map.
The map screen will display with the area of the
traffic condition shown. Press the Next or Previous
screen buttons to view the accident locations that
are on the list.
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