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I’m not totally certain my ota is “stuck”. Is there a way to confirm that? How does one update the dsp? Do I need my dealer to do it? Provided they’re willing. Or would I need to go down the fdrs path? I have managed to make minor adjustments using forscan but have not gone down the fdrs...

It’s a 2021 powerboost. It hasn’t received any ota updates in a while. I wouldn’t be surprised if there was a software fix for this. Would you have any more details about the tsb you mentioned?

I must have been mistaken about what the tow/haul mode does.

How does one lock out those gears?

Just figured out how to get the boost gauge up.

Good question. Since I’ve only had the truck a couple months I’m still learning all of its features. What I can say is that I was in tow mode the entire time. Which I believe disables gears 9 and 10. I was also in 2h the whole time. With respect to boost. I have no idea. I’m not even sure how...

Just picked up a platinum 2021 Powerboost with the 3.5l v6 about 2 months ago. I do not believe it has the max tow package. But I believe it has the tow tech package (?). Just yesterday I hooked up our travel trailer for the first time and we went camping about two hours away. My travel...

As a final update to this thread, I just want to report that it was indeed the differential lock. I’m not sure if it’s standard practice in this forum to mark the thread as solved. Thank you everyone for your help.

It’s a platinum. It does indeed have the 4a option.

Okay so here’s the next follow on question then. When/why would I ever want or need to press that button to lock the rear differential? What does it give me to do such a thing? Is it more of an off roading feature?

I bet this is it. I’m going to go try it again. I do remember accidentally pressing that button when I meant to press the pro trailer button instead. It didn’t occur to me that I had changed anything when accidentally pressed that button.

E locker? Do you mean emergency break?

It is indeed a dual axel trailer. And I agree with everything you said about dual axel trailers in general But it didn’t do this with my previous truck; which was just a basic 2005 f150. And it didn’t do this afterward when I was turning around in my cul-de-sac with my neighbor watching...

I just had a neighbor come out and watch me turn around in our cul-de-sac and identify which tires are making the squealing sound. Embarrassingly, it didn't make the sound anymore. It seems that this was only happening while I was going through the pro-trailer backup assist setup. What the...

I just bought a 2021 Powerboost and today I hooked up my travel trailer for the first time. I drove out to a large empty parking lot to setup the pro trailer backup assist feature. I added my trailer to the system, specified the length and width of the trailer, placed the stickers and then...