Sony NV-U74T Quick Start Manual page 13

Activating the TMC service
After the 90-day free trial, the TMC (Traffic Message Channel) service requires a
fee.
Follow the procedure below to activate the TMC service.
1
Purchase the TMC activation code at: http://www.navigation.com/sony
For details, follow the instructions at the above website.
2
Activate the service on the unit.
Touch MENU 
 "Activate. "
Enter the purchased activation code.
 "Traffic Information"  "Settings"  "Activate TMC Service"
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