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I didn't have to buy the camera separate for the trailer as the new truck had one with the housing, cable, etc. I just popped the housing open, took the camera out and put it in the old housing so I didnt have to rewire, etc. I swear I did find the 2024 camera separately and purchase it but I can't find it in my eBay history so I will search my email history to see if I did it through GM Parts or something. I have a couple of cameras in my extra parts box but I lost track of where they were from since I have the extra 2020 one as well as one from my Dad's 2023 Escalade. It's not the time of year I do any unnecessary truck or trailer work here in AZ! I'll update if I find the invoice.

I'm pretty sure it won't work. I had a 2020 GMC Sierra HD AT4 and bought a 2024 GMC Sierra HD AT4. I set up my enclosed trailer in the GMC app, connected the tire pressure sensors (old ones worked fine) and plugged in the camera. The camera did not work with the 2024. The new truck came with the trailer camera so I opened the old housing, removed the camera and replaced it with the one from the new truck. The camera does work now... I'm guessing they changed something with the resolution / video encoding between 2020 and 2024. Either that or my 2020 camera just happened to malfunction when I bought a new truck... Good Luck!

Well I would keep an eye on the lot of my favorite dealer in case a 3500 SRW Duramax with all the features you want becomes available. But... if you don't see anything that is a great deal or has every feature you want wait until you get the 5th wheel, tow it behind your current rig and see how you feel. Make sure to hook it up on windy days, take it up a few hills (I do see you're in Texas so no big climbs nearby but plenty of wind!) and make up your mind. It's good that you have the gas truck first so you don't have to guess how well it will pull the trailer. You may also want to do some mileage checks to see how far a tank of gas will take you pulling the new trailer. You will get farther with the diesel if you go places where range between stops is an issue like boondock camping.

Well the running board lights came in (again), the parts manager called me and I was able to set an appointment for yesterday Mar 13. The light is working again. It was a long frustrating process but at least it works now. The invoice shows: 84825839 LAMP Good Luck to those of you that are still waiting for the part and solution.

Well I just hung up the phone with the parts manager at the dealership. He returned the running board lights last month because the service department didn't schedule the appointment and put it on the truck. I had called service several times but they kept saying they were waiting for the part. He reordered it today and will call me when it arrives so I can let the service department know...

I did it with my 2020 HD AT4 and I thought the difficult part was getting the power wire through the nipple above the accelerator pedal. Since you don't have to worry about putting the switch pad in the dash the rest of the process is the same as the 2020-2023. This thread should get you there... Good Luck!

I’m still waiting for the parts…

I have a 24 AT4 with the same dash layout as the ultimates… I installed a Garmin Powerswitch in the engine compartment instead of waiting for the upfitter switches. It’s expensive but if you download the app you can switch the powerswitch from your dash with Apple or Android carplay… Another plus is the wires are out of the passenger compartment if you’re switching external lighting / accessories.

Well they ordered parts for mine a couple of months ago and I’m still waiting for them to arrive. Meanwhile, the passenger side continues to work well and nothing happening on the driver’s side…

I have the Milwaukee M18, a ViaAir 300 and an ARB CKMTP12 (twin motor portable compressor). After purchasing the Milwaukee one I left the ViaAir in my RZR and leave the ARB in my car hauler. It works well and as a second recommendation buy the Milwaukee M18 1/2 impact wrench. If you do get a flat it makes quick work of the lug nuts.

Great. It's good to see that they work for someone! Mine deploy and retract fine, just don't light up. It was just peculiar on the other forum when there are other people saying they have the same problem but no one saying theirs work.

On the AT4 forum someone mentioned the driver’s side LED lights on their factory running boards were not working (2024 Sierra HD AT4). I checked mine and the driver’s side running board lights do not work but the passenger side lights work. A few other people noticed the same thing, some had taken their’s to the dealer (including me) and although one person has had the module changed no one has said the driver’s side LED lights are working. I’m wondering if it is a software problem and not a problem with the lighting module or the LED light strip in the driver’s side running board. Does anyone here have a 2024 HD with a driver’s side running board light that works? Thanks, George

My 2024 GMC AT4 3500 does have the textured paint by the rocker panels.

I have a solid aluminum weigh safe that I keep in the truck, it has the 2.5 inch shank and I use it for towing stuff a few miles. If I'm towing a longer distance I like to use my shocker hitch. www.shockerhitch.com I have a heavy duty model with a 2.5 inch shank. There are 8 speed bumps between my house and the nearest main road and it really helps taking the shock out of hitting a sharp edge bump. My trailers are all bumper pull so I haven't tried their gooseneck model. I think the 20k model is around $700. Good Luck

If you buy part # 84669070 it comes with the fuses that connect to the bus as well as the fasteners that are fit for the 2nd battery tray. Makes it easy to connect high amperage cables.