Garmin gtm 21 Manual De Usuario

  See the Important Safety and Product 

Information guide in the GPS device box 

for product warnings and other important 

information.

The Garmin

®

 GTM 21 FM TMC Traffic 

Receiver receives Traffic Message Channel 

(TMC) information broadcast over the FM 

radio data system. When a traffic message is 

received, your Garmin GPS device can change 

your route to avoid the traffic incident. For 

coverage areas, refer to the Garmin Web site at 

. 

To receive traffic information, the traffic 

receiver must be connected to the GPS device, 

connected to an external power source, and the 

traffic receiver and GPS device must be in data 

range of an FM station transmitting TMC data. 

  Note: Garmin is not responsible for the 

accuracy of the traffic information.