If anyone is curious, I think I was on the 3.5.3 OTA when I added this to my 22 XLT and have successfully gone through more OTA updates up to 4.2.4 and all functionality is there still and works fine. The only real quirk I come across in my 5000+ miles on the road every month is occasionally...
Yes.
The "correct" way is outlined in the first post along with an alternate method. In non-nav trucks, the TCU receives location data directly from the antenna. On nav equipped trucks it routes through the APIM.
Okay well that’s an important bit to know. As has been stated many times on this site you can’t just throw this stuff together like on the previous gen trucks.
Yes you need a female to female connection from the ACM to glove box. I would think you could get by with someone about 12" at minimum. What you show in the photos is plenty long enough.
There also may or may not be Chinese spyware in the software used to run the VCX products. I have used one before in a pinch on a GM vehicle but would keep in a virtual machine environment only.
There are some as-built differences. That's why in the OP I stated the values I changed with the qualifier that you need to check what your original values are and compare them.
Fuse 32.
You might want to look into running the APIM diagnostics once complete to verify you have a signal. (Hold down steering wheel NEXT and radio NEXT at the same time and cancel the audio test that pops up. Flip through the menus until you find the satellite data)
This is why I put the...
Not to make light of the situation, but if anyone tries to cut it out you can rest assured it'll either fall on them and pin them down or they won't be able to haul it off. That assembly weighs well over 100lbs. That's a reason they never get stolen along with having no scrap value.
I haven't noticed any of those issues during my hours on the road every day. I installed the update via FDRS as soon as it came out. I did do a factory reset after installing FWIW.
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Again, you do not have a catalytic converter to steal. Your DPF/SCR isn’t even in the same place as the catalyst on gas trucks, it’s under the B-pillar and physical much larger than a catalytic converter. You could probably get something custom made to cover it partially but I’d be wary of...
No need to pull the acm out. Find the fuse and pull it or remove the battery cable for a few minutes. If the antenna isn’t mounted to the roof make sure you’re facing south when starting the truck and just sit there. At your latitude/longitude you’re going to want it on the roof eventually.
I think I’ve figured out where you’re going wrong. You’re skipping steps and getting ahead of yourself. Do this:
If you did not save your original ACM as built, reinstall it and save that.
If you saved it before removing, use the Load All and Write All function in Forscan.
Reset the module...
No. There’s about 1/2” of rake which evens out when towing. I had Sumo Springs on my 2019 with a 2” level to keep it from sagging so much and it rode like a covered wagon when loaded so I wanted to avoid that with the new one.
The biggest issue with the GM twins is their insistence on the tall hood design. Forward visibility suffers so much for that aesthetic. I had a diesel Canyon in between F150s and even on that smaller truck the hood jutted straight out making parking or any tight maneuvering a pain.