GarminNUVI 265wt gps gp gn How would enable my gps traffic

Check the information that came in your box. With my TomTom Lifetime Traffic and Maps, there was an "activation" number on one sheet of paper. I had to activate (per instructions) before I could enable the lifetime goodies.

Yes, the nuvi 265WT comes with a lifetime license for US traffic. That doesn't guarantee that you have a station in your area that broadcasts traffic information, and you must use the special power cable (which contains the antenna) for it to receive anything. You won't see anything on the screen unless/until the nuvi recognizes a traffic signal.

Garmin may just want you to Register your 265WT... go to garmin.com and put in your device's Ser#

In Canada it should subscribe automatically without any need to put a code in. It has to be connected by the adapter through your car's lighter, a small icon of two cars will appear near the top left corner of your map, and with it you can change to the traffic map.
When the icon is green you are in the area covered by the free traffic service.

Both are discontinued, I believe. Here is a link to Garmin's web site.

https://buy.garmin.com/shop/shop.do?pID=35118

In Canada it should subscribe automatically without any need to put a code in. It has to be connected by the adapter through your car's lighter, a small icon of two cars will appear near the top left corner of your map, and with it you can change to the traffic map.
When the icon is green you are in the area covered by the free traffic service.

I found a step by step instructional guide for activating the traffic codes for the Garmin. Apparently you require 2 codes, and must activate the unit on your account. Check this manual follow the steps and Let me know if you achieve results.

http://www.garmin.com/garmin/cms/site/us/support/searchsupport?search_key=traffic+codes+265&Go=Submit

on my 265WT received a free traffic, when I punched in traffic icon, it gave me a code I have to insert when going to garmin.com/fmtraffic, can't find the place to insert the code?

dont know

I called Garmin about the same issue. If you will turn it on and are in one of the 50 metro areas covered it will automatically receive trraffic updates. That is exactly what I did and it worked and I got the same message you did. You do NOT have to sign up, get a code, or anything. Just turn it on in one of the areas and watch for the traffic symbol on the uper left hand side.