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Garmin GTM 12, FM TMC traffic receiver

Save drive time, gas, and your sanity by adding traffic services to your compatible Garmin.

New Compact Design and Easy-to-install Antenna
Similar to the GTM 11, the GTM 12 is an FM TMC (Traffic Message Channel) traffic receiver and antenna. It receives digital information (where available) on traffic and road construction tie-ups that your compatible Garmin unit uses to offer an alternate route. The GTM 12 features a new compact design and includes an antenna suction cup mount - making it easy to install.

Avoid Traffic Tie-ups
TMC data is available in a fast-growing number of cities throughout North America and Europe, and gives prompt, accurate notification of accidents, road construction, police, or emergency action, etc. - so you can visually monitor traffic flow and, if necessary, avoid traffic tie-ups.

Receive Real-time Traffic Data
In most areas, depending on the service provider, TMC traffic broadcasts are continuous - there's no waiting for scheduled traffic news updates or random alerts. With the GTM 12, you see traffic developments in real-time, as they happen, so you can make the right decision sooner. The system alerts you when a traffic problem is on your route and proposes an alternate route to avoid the incident. Because traffic broadcasts are received via a "silent" FM data channel, you can still listen to music or news programming on your car radio without interference from incoming FM traffic data transmissions.

The GTM 12 is a plug-and-play FM RDS-TMC receiver that does not require professional installation.

Subscription Information
The GTM 12 FM traffic receiver will come with a 15-month trial subscription to Clear Channel TMC. To renew a subscription, visit the FM TMC Traffic Service section on the Garmin Web site (

For more information on real-time traffic information for your Garmin, see Garmin's Traffic web pages.

If a fixed installation receiver is preferred, the GTM 10 Traffic Receiver is available.

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Coverage Areas
Click on the map to view coverage areas and list of cities

GTM-series quick links
GTM 10 Professional installation recommended; connects to car antenna/radio
GTM 12 Plug-and-play; integrated antenna; compact design; antenna suction cup mount
GTM 20 Plug-and-play; all-in-one antenna, traffic receiver and cigarette lighter adapter

Garmin GTM 12 FM TMC Traffic Receiver (portable)
Includes 15 month service
Discontinued 010-00570-01

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