Traffic tie-ups can't always be prevented. But with Garmin's GTM 20 portable traffic receiver, you can often avoid them. Power your nüvi and get lifetime¹ traffic updates all with one cable.
Avoid Traffic Tie-ups
The GTM 20 provides North America traffic information to compatible Garmin GPS navigators. Using this data, your device alerts you to local traffic tie-ups and displays current traffic levels. The receiver also acts as an in-vehicle power charger. Traffic provided by NAVTEQ Traffic.
Coverage Area
NAVTEQ Traffic provides real-time traffic conditions for more than 90 metropolitan markets in North America, including Toronto, Canada. View detailed coverage information.
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- Comprehensive, reliable nationwide coverage
- Accurate traffic flow speeds
- Unplanned incidents such as accidents and stalled vehicles
- Planned incidents such as road construction and closures
- Information about special and sports events and holidays that may affect traffic
Compatible Models
aera 550, aera 560, nüvi 5000, nüvi 650, nüvi 660, nüvi 670, nüvi 680, nüvi 750, nüvi 755T, nüvi 760, nüvi 765T, nüvi 770, nüvi 775T, nüvi 780, nüvi 785T, nüvi 850, nüvi 855, nüvi 880, nüvi 885T, StreetPilot c550, StreetPilot c580, zūmo 660
GTM 20 with lifetime traffic and owner's manual
¹Lifetime traffic extends for the useful life of your Garmin traffic receiver (as long as you own a compatible Garmin GPS) or as long as Garmin receives traffic data from its traffic supplier, whichever is shorter. Traffic content not available for all areas. See www.navteq.com/rdstraffic for traffic coverage areas and www.garmin.com/traffic/fm/navteq.html for program License Agreement containing complete terms and conditions.
Readmore! Garmin GTM 20 with Lifetime Traffic
Technical Details
- Sends real-time traffic information to your compatible Garmin navigator- Warns of traffic jams, accidents, emergency activity, and construction
- Lifetime free subscription to traffic-information service
- Self-contained antenna and 12-volt cigarette lighter adapter
- See below for compatible Garmin models
See more: technical details
By Mike (Pittsburgh, PA)
I've used the traffic alert system for a couple of months and it has provided good information for both rush hour/accident traffic slowdowns and weather affected traffic slowdowns. I would recommend it if you are around urban areas. I my case coverage runs out about 40 miles from downtown Pittsburgh, which works out fine for me.
Just plug it in and it automatically works on my Garmin, very easy.
By Paul David Werbicky (Concord, CA USA)
I have a Garmin 765T that already came with a GTM 20 with Lifetime Traffic. The problem is that I ride a motorcycle and this power/antenna cable runs from a handle bar mount, under the gas tank, to a socket under the seat. Needless to say, moving my Garmin from motorcycle to car was a royal pain. Solution was to buy a second GTM 20 for the car. A very simple solution. It was cheaper than buying 2 Garmins and with Amazon's excellent pricing and fast delivery - problem solved.Garmin GTM 20 with Lifetime Traffic
By mattgb1 (New York City)
I love my Garmin Nuvi and I hate this GTM device.
When I bought this I used it religiously in all types of traffic conditions, but strangely enough the information it gave me was inaccurate or worse, often causing me to make very bad decisions like avoiding a highway because it warned me of 45 minute delays when friends of mine took that same route at the same time and had no problems, or when it would tell me to avoid a jam by taking a side street in a bad neighborhood where I ended up motionless for 25 minutes before being able to proceed the two blocks needed.
And finally, the power adapter stopped transmitting electricity to my GPS at all after about 6 months, causing me to lose all power in the GPS because I'd thought it was plugged in.
Perhaps Garin's method for providing reliable traffic information will improve with time, but I think that as long as the traffic signal has to come from what is essentially a cable that can easily wear out, I don't find this to be a good way to provide traffic information to the driver... and even less of a reason to buy a device-specific "lifetime" subscription on a device that doesn't want to work for more than 6 months.
By Roger Mcginnis (San Diego,CA)
This is a great addition to your GPS. If you are in an area that the GTM 20 will work, then it is great. It will let you know if there is any delay up ahead and it will route you around the problem. Plus it charges your GPS for you. This is a must have for your GPS system!
By K. Joshi (Cleveland, OH)
The traffic receiver is very easy to use. No software to use. Just plug it in your car's cigarette lighter and the Garmin GPS device and you are good to go.
My only gripe is that if you click on the traffic icon on your Garmin GPS devide (mine is nuvi 660), it shows that the receiver is not activated. This is incorrect message and should be ignored.
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