Garmin gtm 21 Manual De Usuario

  Note: Heated (metalized) windshields 

could degrade the performance of the traffic 

receiver.

Depending on your region, your traffic 

receiver receives traffic data through either 

a premium service or a free, public service. 

For information about your traffic service 

subscription, see the product packaging or 

the Traffic settings in the GPS device. The 

subscription activates automatically after your 

Garmin GPS device acquires satellite signals 

while receiving traffic signals from the service 

provider. 
You can add other FM TMC subscriptions 

at any time. Check the Garmin Web site at 

services. 

Before mounting the traffic receiver, see the Important 

Safety and Product Information guide for information 

about laws pertaining to windshield mounting