DubVBenz

Well the 940 will last forever. I used to own a 97.5 S90, which was the same chassis. I know the 26 cummins will inevitably disappoint in terms of reliability, but my hope is that that it will be more repairable rather than a throwaway like it appears many of the major issues with the LZ0 become.

I bought a 24 3.0 new and in the first year it was at the dealer for 4-5 weeks for continued emissions issues. Last year the engine wiring harness went at 11K miles and would have been an expensive repair if not under warranty. I absolutely love this truck. The way it drives, the power, the fuel economy, the way it looks, the interior, etc. But my confidence after my issues and being a member of all online communities has been lost and I'm selling the truck I bought for a 19K loss back to the dealer after 29 months and 14,300 miles and buying a new cummins 2500. Everything about the interior and exterior of that truck is a step down, but I'm hoping the combination of a cummins engine and the new ZF 8 Speed will be more reliable long term.

After a bunch of research, I'm just going to stick with the OEM 20s and get these tires: https://www.tirerack.com/tires/tires.jsp?tireMake=Continental&tireModel=TerrainContact+H%2FT&partnum=76TR0TCHTV2&fromTireCompare=Y&vehicleSearch=true&autoMake=GMC&autoYear=2024&autoModel=Sierra+1500+4WD+Crew+Cab&autoModClar=275%2F60-20 We've had one hell of a ice storm here in VA and I have been so disappointed in the Bridgestone alenza tires that came with it that I thought maybe getting an 18 with more sidewall would give me more options for better traction. After reading up on the OEM bridgestones, apparently they're complete garbage and the Continental TerrainContacts are a lot better. I run continental DWS on all of my other vehicles, so I'll stick to that brand. I looked at the Falkens, but they add too much weight. The TerrainContacts have a higher load rating too.

I have a 24 SLT with the Max Tow option, which gives you a 9.76" rear end, 3.73 gears, real leaf springs, supposedly enhanced cooling, and mandatory 20" wheels. The disclaimer when choosing the option is that the 20" wheels are necessary for the increased load. I'd like to drop down to 18", but I'm trying to find a clear answer as to whether or not that would affect the total towing rating, which is currently 12,900. I know I'll never likely tow that much, but I might hit 10K here and there. Anyone have thoughts or guidance?

After searching a bunch, doesn't seem like there's much out there. I've been daily driving the truck for 1.75 years. Bought it new in January of 2024 and it spent almost a month at the dealer in the first 3 months for various emissions related crap. Since then, it's been perfect. Was driving it tonight, and it started shuddering and complaining about servicing emissions, ESC no longer working, and 175 miles until reduced acceleration. I monitor my DPF and Regens and knew it wasn't near a regen, but I did note earlier in the afternoon before I took it out to pick up some dinner that it smelled like it was in a regen. Trans/Engine temps fine, DPF still showing only about 70% soot. From searching I've found, across lots of models, because there's very few reports on an LZ0 but a few on an LM2, is that it's an injector harness that might have become chaffed and caused not only an electrical voltage issue, but perhaps damage to the injector. I scanned and found overall voltage was just fine. Just curious if anyone has experienced something similar. Love the truck, it's my most fuel efficient vehicle by far, but I've been concerned about long-term reliability based off everything I've read online. I can't fit a 2500 in my main garage, so this was kinda the perfect compromise since I have the Max Tow and every possible option you could get on an SLT. I have it scheduled for the dealer next week, but it sure would be nice to have access to my truck for lots of necessary projects in the next two weeks. Talk about bad timing.

Interestingly enough, my truck's infotainment and instrument cluster stopped turning off in the last few days when I exited the vehicle. Normally, after powering the engine off, things remain on until you open the driver's door, but this stopped working normally a couple of days ago. I called onstar and told them I was still on Android 10 and asked if they could push an update. They said they were incapable of doing so and I'd have to take it to the dealer. The next morning, after I arrived at my destination, the truck advertised an update with no details. It's the first one I've gotten in at least 6 months. I accepted and walked away, thinking it was something minor. To my surprise, when I came back later, the truck now had Android 12. It also powered off properly a few times yesterday. Hopefully that saved me a trip to the dealer.

Thank you @newdude - For some reason I thought that TSB only applied to 2025 models. I will reference it on my next visit.

I have a 2024 SLT, purchased new in January of 2024. It had Android 10 upon delivery and later on in 2024 GM started rolling out the Android 12 update. I brought it in for a software update notice later on in 2024 and some sort of update was applied, but not the Android update. I've checked several times for OTA updates over the last year but nothing has popped up regarding an Android version upgrade. I did get the mandatory SW update that added cabin ventillation or something similar, but not Android update. So the question is, how can I get the head unit upgraded? Can I take it to the dealer and simply request they update it, or will they only apply software updates if there's an issue reported?

I have the rain sensing wipers in my 24 SLT and they completely suck.

My 07 and 15 mercedes have auto up/close windows with the keyfob, including the sunroof.

It would be great to ask the voice assistant to play a song or band on my USB drive, but any time I request it asks me to subscribe to youtube. Any ideas?

I put in a Rockford Fosgate 10" integrated sub/amp under my driver's side rear seat and it's awesome, however having some better speakers up front for mid frequencies would be nice if they were plug and play. The bass is a bit overwhelming unless turned all the way down currently.

I've had a frustration, basically since new, where my passenger side mirror doesn't tilt back into place most of the time after shifting from reverse into drive. When you put it in reverse, the convenience feature tilts it down so you can see your rear wheels. Upon putting it into drive, it's supposed to return to the original position. Mine will only return about 25% the time The other 75% of the time, it tilts back most of the way and stops. If I press my seat memory button, it then corrects itself. It's been a minor annoyance, not enough of one that I figured I'd return to the dealer for a warranty service. So I'm just wondering if anyone has the same problem, found a solution or if the dealer was able to correct it? One of the reasons I haven't bothered for a dealer trip is I halfway expect to waste a couple of days without the truck, only to receive a "could not reproduce" diagnosis.

It looks like they're just invoking the turn signal color full time. My only concern would be the longevity of those amber LEDs.. are they rated to be on full time? That's the only reason I would hesitate on something like this.

For the refreshes, they added a monoleaf for the non max-tow/NHT versions. I wonder if this applies to both?