GMC Acadia 15919282 Owner's Manual page 476

•
Yellow indicates slightly impaired traffic flow with
average speed between 25 and 45 mph.
•
Green indicates normal traffic flow with average
speed above 45 mph.
•
Orange indicates construction.
Traffic flow data arrows display on the map when scaled
up to eight miles.
Closed Road, Traffic Delays, Incidents, and
Advisories — These four touch screen buttons are
used to select the traffic event ICONS that appear on
the map screens.
Alert for Approaching Traffic Events: When On, if an
approaching traffic event is within the alert range, one
of two traffic alert pop-up screens display:
•
With no route planned, while on expressways,
Approaching Traffic Event without Avoid screen
displays.
•
With route planned, Traffic Event on Route screen
displays.
If the Alert for Approaching Traffic Events is Off, the
alert pop-up screen does not display.
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On-Route
Select the On Route touch screen button to display all
events ahead on the current active route. If no traffic
events have been reported on route, No Traffic Events
Reported On route displays.