From the main menu, select > Traffic.
Traffic: Enables the traffic feature.
Current Provider: Sets the traffic provider to use for traffic data. The Auto option selects the best available traffic data automatically.
Subscriptions: Lists the current traffic subscriptions.
Optimize Route: Enables the device to use optimized alternate routes automatically or upon request
(Avoiding Traffic Delays on Your Route).
Traffic Alerts: Sets the traffic delay severity for which the device displays a traffic alert.