What is the traffic function?
1517908
Traffic Function is the updating of trafficflow on the venues in in the vicinity for possible routes you might traverse I.e. red is extremely slow , and green would indicate good or regular speeds.
1090540
The power cord is not a traffic cord. You must buy the traffic receiver for your GPS. Best,
1135732
The device is not wifi capable. You must connect to an external source to receive updates of traffic. You don't have to but it is nice to be aware of upcoming traffic.
2028449
Traffic does show up on the Tom Tom. At least it tells me there is a delay...
122816
If you are talking about 340TM unit (Lifetime Maps and Traffic), it does not have the Live services capability. The traffic on the 340TM unit comes through an RDS/FM receiver which is built into the car power supply. According to my experience, the traffic information is quite useful, e.g., it avoided closed roads in Boston. I have seen slow traffic reported only on highways but never on local roads (however, I've only used the unit for 2 days).
140920
Traffic data is received over public FM radio signals, so you're good until the data format changes. There's nothing to subscribe to. As for map updates, that has nothing to do with the traffic receiver.
1141488
No, the traffic receiver is built in to the supplied power cord. I have been using mine in the SF Bay Area for about a year now. The traffic information is not as up to date as it should be, a little slow to tell you bad news, very slow to remove it. Sometimes it will tell you roads are gridlocked several hours after they have cleared.
116587
It is a tap and to the best on my knowledge does not filter any traffic. If it is filtering BPDU packets, i am not aware that it does. I do not have it setup in a situation to look for them.
2272330
Yes, it does have traffic updates. However it is difficult to determine the accuracy of those traffic reports, because conditions are constantly changing, so by the time you arrive at the area that had an earlier-displayed slowdown, you'll never know if things cleared up or got worse moments before you arrived at the location. After driving ~6000 miles on a northeastern road trip last summer (areas with lots of traffic), my impression is that the traffic updates were largely accurate and helpful. Oh, by the way, we didn't get traffic capabilities that require extra equipment or subscriptions. We just got the basic model.
1962654
It gives you very basic traffic for free. Useful traffic requires you to buy an iPhone app and run it at the same time to get good traffic.
140919
Exactly as Timothy answered. The traffic receiver is a lifesaver in heavy traffic areas and even identified school zones for an extra level of help.
827938
All models with the "t" suffix use the ad-based "free" traffic feature. I do not find them a bother whatsoever (YMMV). Matter-of-fact, I rarely see them, especially when driving, and it's something that does not take any user input (you won't have to mess with the touch screen). After I've reached my destination an ad will pop up, but usually I've already turned my Nuvi off. Occasionally, I'll actually read the ad out of curiosity. If you hate the ads, just turn off the traffic component via tools / settings / navigation / avoidances (and uncheck traffic).
894390
This does warn of traffic ahead, it even gives approx. minutes of delays, It is pretty advanced. There may be a setting for low bridges etc, I just don't need this and haven't looked for it. There is a pretty extensive list of settings which include avoidances. The large screen is nice.
2010035
It does not give traffic. I have no idea where you live, but in the Baltimore/Washington metropolitan market i say "who cares?". When the original cord with the traffic reception worked, the best I could hope for is that - after I'd been sitting still on a Beltway for 1/2 hour - it would say "traffic ahead". I'm glad to be rid of it. With regard to your specific model, I can't be sure. Having said that, I'd really be quite surprised if it didn't work. For me, this has been a great replacement charger at a fraction of the cost of a charger that has the traffic receiver. But if the traffic notifications actually work for you in your area, you might want to buy one from Garmin. It does not give traffic. I have no idea where you live, but in the Baltimore/Washington metropolitan market i say "who cares?". When the original cord with the traffic reception worked, the best I could hope for is that - after I'd been sitting still on a Beltway for 1/2 hour - it would say "traffic ahead". I'm glad to be rid of it. With regard to your specific model, I can't be sure. Having said that, I'd really be quite surprised if it didn't work. For me, this has been a great replacement charger at a fraction of the cost of a charger that has the traffic receiver.... » Read More It does not give traffic. I have no idea where you live, but in the Baltimore/Washington metropolitan market i say "who cares?". When the original cord with the traffic reception worked, the best I could hope for is that - after I'd been sitting still on a Beltway for 1/2 hour - it would say "traffic ahead". I'm glad to be rid of it. With regard to your specific model, I can't be sure. Having said that, I'd really be quite surprised if it didn't work. For me, this has been a great replacement charger at a fraction of the cost of a charger that has the traffic receiver. But if the traffic notifications actually work for you in your area, you might want to buy one from Garmin. « Show Less
2272324
the first time I used this, the traffic worked pretty well. Ever since then, I keep getting an ERROR message the cable used is not compatible with this device for traffic. WTH? It is the cable that came with it, and IT WORKED the first time I turned on the traffic feature, worked for the 2 day weekend, now it never works. I constantly get an error every time I use the GPS. I am not real happy with this purchase.
52612
It uses the same USB input as the other Nuvi models but it DOES NOT support the traffic option. I have a 2455LMT that works fine with the cigarette lighter cord but when this cord is used it disables the traffic function. The map, directions & GPS work fine. I haven't found a hard wire cord that provides traffic. Since the traffic feed is FM, I assume the antenna is in the cord. If you don't need traffic it will work for you.
975224
This is just a switch, it passes traffic from one to many connections, it does nothing else.