Garmin GTM 20 Instructions Manual - Testing The Traffic Receiver

GTM 20 Instructions

Testing the Traffic Receiver

Check the Map: Check the map on the GPS 

device for traffic incidents or a traffic icon. 

Refer to the owner’s manual.

Verify Signal Strength: If you are inside a 

garage where radio signals cannot be received, 

drive the vehicle outside. 

Verify that you are in a service area: Check 

for service from the pay service or free or 

premium services. 

Service and Subscription 

Information

Depending on your region, your traffic receiver 

receives 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.