Garmin GTM 20 Owner'S Manual Download Page 2

Using Traffic Data with Your 

Garmin GPS Device

The GTM 20 works with your Garmin GPS device to 

show traffic flow and incident information and enable 

routing around traffic incidents. Although each GPS 

device operates differently, they all provide similar traffic 

information. 

Avoiding Traffic

The Map page shows a   when there is a traffic incident 

on your current route or on the road you are traveling 

on. Touch the   to view the traffic information. Touch a 

traffic incident to review it. Touch 

Avoid

 to route around 

the incident. 

Viewing Traffic Information

Each GPS device provides a list of traffic incidents. On 

many GPS devices, you can access this list by touching 

the traffic icon on the Menu page. Touch an item in the list 

to view the details. 

Severity Color Code

In the traffic incidents list, the bars to the left of the traffic 

symbols indicate the traffic incident’s severity:

 Green = Low severity; traffic is flowing normally.
 Yellow = Medium severity; traffic is a bit congested.
 Red =  High severity; traffic is heavily congested or 

stopped. 

Traffic Symbols

North American

Meaning

International

Road Condition

Road Construction

Congestion

Accident

Incident

Information

Changing the Traffic Settings

Some Garmin GPS devices allow you to change the 

Traffic Settings. The settings are often found near other 

software settings. For example, from the Menu page, 

touch 

Settings

 > 

Traffic

 

NOTE: 

Not all Garmin GPS devices allow you 

to change the Traffic settings. 

Purchasing an Additional FM 

Subscription

 

NOTE: 

You do not need to activate the 

subscription that came with your GTM 20. Your 

subscription activates automatically. 

To renew your FM subscription or purchase an additional 

subscription, go to Garmin’s FM Traffic Web site at 

http://www.garmin.com/fmtraffic. Follow the steps on 

the Web site to obtain a 25-character Traffic Subscription 

Code. Enter the code in your Garmin GPS device. Refer to 

the confirmation e-mail or Web page for instructions about 

entering the code. 
The Traffic Subscription Code cannot be reused; you must 

obtain a new code each time you renew your service. The 

code is specific for the GTM 20 it was purchased for; it 

cannot be used on multiple GTM 20 devices. 

Register your GTM 20

Visit our Web site at http://www.garmin.com and click the 

Product Registration

 link to register your GTM 20. Keep your 

original sales receipt in a safe place. The 8-digit serial number is 

located on the product packaging.

Serial Number:

 ___ ___ ___ ___ ___ ___ ___ ___

Garmin’s standard Limited Warranty applies to this accessory. 

Refer to your GPS device’s owner’s manual or product 

information sheet to view the warranty as well as warnings and 

cautions, FCC compliance information, and the software license 

agreement. 

March 2006 

Part Number 190-00659-00 Rev. A 

Printed in Taiwan

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