GTM™ 20

Part Number: 010-00544-01
Estimated availability is 1 – 3 business days.
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The GTM 20 is an integrated FM Traffic Message Channel (TMC) traffic receiver, antenna and 12-volt power adapter. It receives digital traffic information for North America,* allowing your compatible Garmin device to route you around accidents, construction and other obstacles to save you time.

  • Covers North America.
  • Combines antenna, traffic link and 12-volt power adapter.
  • No professional installation required — just plug it in and drive.
  • Real-time traffic data — no waiting for scheduled traffic news updates or random alerts.
  • Won't interfere with music or news on your FM car radio.

*Traffic services are available only in select cities where coverage exists. A subscription may be required to enable traffic service.

Total Traffic Network

In the Box

  • GTM 20 FM TMC traffic receiver
  • Owner’s manual


Maps for New Regions

Need maps for other regions? See all maps that are compatible with this device.

Need a map update?

Update the maps that came with your device for the best navigation experience.

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Compatible Devices