kf9yr

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.

The fusebox for the upfitter switches should be installed just above the driver's side knee panel. Poke your head under the dashboard and it's pretty much in line with the brake pedal, a small rectangular plastic box. The output wires are pretty short but you will find them there. Read the bulletin and there is a way to make the outputs always available or only when the ignition key is on. I didn't take any pictures with my 2020 so none to share with you. One of the switches is wired to work with a light for snowplowing / towing /etc. It runs up near the center mounted third brake light. Good Luck!

The RubiGrid doesn't fit the AT4 / Denali stacked dash so back to the drawing board for me... Good Luck finding a D710. I found one a couple of years ago that a local had won in a hamfest and didn't want to invest the time to learn how to operate. I wouldn't pay over MRSP for a radio that may be replaced soon. I have a pretty good Kenwood collection, TS480 (200 W), TS890, D710 and the D74 HT. George / W7GES

Kerry, I added the upfitter switches to my 2020 GMC 2500 HD AT4. It was fairly painless. I used a utility knife and cut the hole in the lower dash panel for the switches, added the wiring circuit and the fuse box and pulled the wire across the engine bay and through the firewall. I didn't like where the buttons were though. Hard to see when they were on and off and hard to identify which one to push. With the 2024 AT4 / Denali dash I'm still not clear where the switches will end up. The Garmin Powerswitch was on sale so I picked one up. I did use the upfitter / snowplow passenger battery fuse kit to hook the Powerswitch to the battery so there is a fuse in addition to the Garmin solid state ones. I really like your underhood lights idea also. I also agree there should be more interior lighting. Maybe most of the design folks are young and still have great eyesight with low light levels. I have found I need more light to do most tasks (can't read the menu without my cell phone light at a lot of fancy restaurants any more either)! Hopefully the weather cools down here and I can start working on my truck soon. Good luck with whatever route you wind up taking. Maybe using the Powerswitch for accessories outside the cab and the upfitter switches for interior ones will be a solution that requires less wiring through the firewall.