RAPTOR OWNERS...Traffic Jam Assist

[antho]

Maybe find a Maverick owner that is well versed. They have TJA.

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[oneinch]

Maybe find a Maverick owner that is well versed. They have TJA.

I have a '22 Maverick Lariat with all the options. There's nothing in any documentation I've seen that mentions TJA. My Maverick will steer itself using the weighted wheel hack. I don't think it has what I would call TJA. It only has ACC and LC. I think TJA should be and is a little more that that.

 

[antho]

Look at the IPMA module and see what’s enabled. I would bet it has TJA enabled.

 

[oneinch]

Even if, this doesn't explain exactly what TJA is or what it is supposed to do for you. I wouldn't know what to look for. I can find the module, but the rest is just letters and numbers.

Traffic Jam Assist isn't mentioned in the owner's manual. This may not mean anything. I don't know if the Raptor has an owner's manual. The Raptor is referenced many times in the F150 manual and this manual doesn't mention TJA either.

 

[oneinch]

I just read something on Traffic Jam Assist. With Ford at least, TJA may be nothing more than an element ACC. This element might be the "stop and go" function within ACC. Not all ACC equipped cars have stop and go. This could be the answer I'm seeking. TJA is S&G and S&G is TJA. Hmmm ?. I'll have to play with these setting after my BlueCruise subscription expires.

EDIT: I'm formulating the idea that Ford's TJA is ACC with Stop and Go, and Lane Centering. I'm further guessing that with connected GPS you get the added functionality of Auto Resume. It does not function in a hands free mode. If this is true, then my Maverick does have TJA without auto resume (since the Maverick has no GPS). I don't think Ford uses the Traffic Jam Assist terminology anymore.

 

[np24]

Hi, I can answer with my best guess on what traffic jam assist is in a 2024 Raptor. I purchased one and drove from Maine to California and absolutely love the feature haha.

When driving on the highway with adaptive cruise on and you get Into bumper to bumper traffic (aka a traffic jam), the truck will come to a complete stop, get much closer than it would in the city to the car in front of you, and say “auto resume”. Once the cars start moving, the Raptor starts driving on its own INSTEAD of requiring you to press the resume button or gas pedal to begin driving again.

This is different than city driving where after stopping the Raptor will say “Stopped - Press (symbol) to resume” and will not move until you press the gas or the button to start driving again.

I’ll upload a picture, and try to upload a video from when I was trying to show a buddy how close it “looked like I was” - which happened to capture this feature in action.

To the best of my knowledge, this is traffic jam assist.

 

[np24]

Oh I actually just responded to your theory, my theory is the same thing haha, I have it and just posted a video / picture in my last response.

 

[ApolloChurchill]

https://media.ford.com/content/ford...-turns-traffic-jams-into-chill-time-and-.html



TJA is some very vintage branding, perpetuated by literature that continues to get copied and pasted. It’s not really a main feature but a culmination of modern ADAS available now. I believe initially it was supposed to be completely autonomous at low speed but regulators shut that down

 

[oneinch]

Hi, I can answer with my best guess on what traffic jam assist is....

Thanks for the reply. What you described, BlueCruise equipped trucks do. I have questions though.

When auto resume activated, where you on a limited access highway; such as an interstate highway? You've never had this activated otherwise, correct? My BlueCruise has only activated auto resume on a limited access highway. The only way it knows it is on a limited access highway is by GPS data.

Most importantly, did your truck apply steering assist when you where in a traffic jam situation; lane centering? If so, did your truck allow handsfree driving or require hands on driving? Also, if your truck did apply lane centering did it only do this at slow speed? At what speed did the lane centering deactivate, if it did at all?

Are you aware of the weighted steering wheel hack? Placing a weight on the steering wheel at either 3:00 or 9:00 on a truck with lane centering fools the truck into thinking you're hands are on the wheel thus allowing handsfree operation. Can you do this in your Raptor? I use this hack in both my F150 and Maverick and I drive handsfree wherever the truck allows lane centering; which is basically any well marked road.

 

[np24]

Oh yeah, it sounds exactly like what you’re describing. Technically my hands are supposed to be on the wheel (which is why you see the steering wheel with the hands on it on my windshield), the truck is actively centering itself in the video and it does this VERY well. It will only de-activate lane centering if I move the wheel myself, or if it looses the lines for too long. It’s typically going too slow to determine I’m not holding it, and lets me get away with hands free at these slow speeds. Auto-Resume only works on toll highways and freeways, so definitely GPS based.

Either all raptors, OR raptors after a certain year were removed from bluecruise entirely, even though they’re “capable”. I have all of the lane centering, driver attention monitor, infrared sensors for eye tracking, and the camera, BUT bluecruise is not an option. The camera is only used for driver attention alerts and interior motion alarms. You can find a memo floating around about the removal of raptors from the bluecruise program if you search google for Raptor Blue cruise.

I haven’t tried the weight trick, but I’m sure it would work as I’ve just used my knees to apply pressure to the outsides of the wheel, and slightly reduced the pressure as it begins to turn (I’m sure you know, it pulls pretty hard haha).

I’ve also learned to turn lane centering off at around 100MPH, once you’re far enough west the speed limit goes to 80MPH so my typical 20 over is naturally 100 with no other traffic - the constant “check” for hands will oscillate the suspension in such a sketchy way that it makes you soooooo uncomfortable haha. When enabled - Lane centering automatically activates without adaptive cruise control above 35MPH, OR at all speeds with ACC activated.

 

[oneinch]

I can't say for Raptors - though I imagine it could be the same - but BlueCruise won't work at 81+ MPH. I think lane centering won't work either. I found this out one day. I was baffled until I figured it out.

 

[np24]

haha well, let me be the first to disprove that theory lol - I don’t THINK I edited anything in Forscan to change it, but then again who knows at this point.

The first image is a Live Photo recording showing lane centering (hands on wheel icon) active while driving at 93. The second image shows a reflection of my Speedo showing that the truck is in full lane centering (different day, but same thing) - it just happened to capture the speedo.

Bluecruise definitely deactivates at 80 on the 2025 Expedition Max lol, my buddy had one and I kept getting annoyed when he’d slow us down on our journey by getting lazy and going hands free. Let’s be real, it was really because I couldn’t go fully hands free myself too though

 

[np24]

Also, incase you’re curious - here’s the “canceled” message for when I take steering or accidentally hold the wheel too tight (attempting to make it drive itself haha), and what ACC looks like with no vehicle in front of it.

 

[oneinch]

It appears the only difference between a Raptor and a BlueCruise equipped truck is legitimate handsfree driving. You could drive handsfree with the weighted steering wheel hack.

Question, you have the nanny cam in the upper left of the center stack? If so, I am surprised by this. I assumed this was only on BlueCruise trucks.

I once tested what I call the Raptor edit in FORScan. I disabled BlueCruise and enabled TJA. This disabled the nanny cam, but I could still drive handsfree with the weighted wheel hack.

I want planning on renewing BlueCruise, but Ford have me an additional year. So I'm November '26 I plan on trying the "Raptor edit" again.

 

[ApolloChurchill]

You keep saying Raptor, there is nothing specific to Raptor that differs. We installed the same ADAS system universally for P702, any truck without Blue Cruise but has Lane Centering behaves this way. This is how I use my Tremor, many people on this forum have gone to lengths to disable Blue Cruise so they can also use their trucks this way. Yes Lane Centering with ACC will work above 80 MPH by default. It’s also nice when combined with Curve Control. All Raptors were removed from Blue Cruise participation but have the hardware, it’s odd but oh well. No the DSM does not get used for traditional driver assist monitoring or in vehicle motion sensors. The vehicle motion sensors are installed in the overhead console.

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