Sumrtime

FWIW I got it figured out.

If you ordered three different trucks from three different dealers, you should be happy that it is only costing you 2K!!! Never heard of a dealer special ordering a vehicle for a customer unless the purchase agreement was signed.

Anyone know how to disconnect the GM sensors from the trailering app? I was not happy with my experience using mine, so I went with an aftermarket TPMS system. Problem now is every time I tow, after about 10 miles I get a "tire pressure fault" warning because the system is searching for sensors that aren't there. I can find plenty info on how to set up the system but nothing of how to remove them.

I realize this may be a dumb question but I'm gonna ask it anyway. Is it safe to use an undercarriage attachment for a pressure washer under these trucks? Not gonna blast away at 5,000psi. just want to give it a thorough rinse after being at the beach for a week. Curious about any risk to any of the sensors etc. in the DPF exhaust system. Or anywhere else for that matter.

Anyone else having weird issues with their screen. I hardly ever use the Apple CarPlay screen but more often than not, that’s the screen that comes up at startup. Not every time but most of the time. Is this how it’s supposed to work if I have my apple phone in the truck?

Installed the supplied GM stems in my 5th wheel tires over a year ago. On a trip yesterday I had a tire blow. After 30 minutes of sitting on the shoulder I get a console message of high temp on that tire. At the same time, the system was still showing 102psi on the blown tire. I definitely lost faith in the GM system. Not saying the system doesn’t work but don’t have much faith in it now.

Looking for advise/suggestions on purchasing a tonneau cover. Having never had one I'm really not sure what's good or bad. I have been reading some on them and trying to learn some of the pro and cons for each. I really like the low profile look of the retractable covers but I have heard they can freeze and that the canister fills with grime and creates issues. Is this true? Then that leaves a soft fold or hard fold. I prefer the look of the hard folds but I have an 8" bed and don't want to end up having to get on top the bed to lift the last panel because of its weight. Not real keen on the roll ups either. Asking for suggestions and recommendations from those of you that have actually owned them. Thanks

Love my truck but hate that the tailgate cap is plastic. Won’t take long to completely destroy the inner top edge just taking simple things in and out like camping gear. Does anyone make a metal cover or anything to put over this to preserve it?

As far as the sensors not fitting, all you need to do it’s change the rubber seals to ones that fit the larger holes. Sorry I don’t know the number to tell you but that’s all I did. Bought a set of metal stems with the correct size gasket and swapped them out. Any tire shop should have them on hand.

Sorry if this has been discussed but I searched and couldn't find this particular issue...Installed the OE sensors on my 5th wheel today. When programming you have to choose a pressure. I had to select a pressure amount between 50 and 100psi. My trailer tires are rated for 110psi. So now I have working sensors that are showing 10psi lower than the actual pressure. If there any solution for this? Seems kinda stupid to stop the program at 100psi on a 1 ton truck. If this was a 1500 I could see them doing this but this is stupid in my opinion. I know I can still monitor the pressure and just add 10psi but I assume the system gives a warning when a tire get too low. As it is, by the time I get a warning my tire isn't a little low, it's going to be a lot low.

I have a 21 GMC Denali 3500 Long bed SRW. Truck has just over 15K miles. I tow a 42" 5th wheel that weighs right at 14K. Granted I have yet to tow any real distance (most trips were 1 hour or less) my average towing is 8.5.

Finally replaced the ugly black fender flairs on my truck. Really don't understand why GM even puts the black ones on these trucks. I could see on a black truck of even a base model but definitely not on a white truck. Personally, I think it looks much better.

I'm pretty sure they are the same. If you are looking for a solid glass not a slider shoot me a pm. I am in the glass business and I have two that I removed from new trucks. Had a fleet customer purchase two new trucks then had me swap out for a slider and I decided to keep the glass. I'll sell one to you cheap if your interested.

It's definitely something that can't be easily added. You first off have to have the ability in the onboard computer to operate it. Second you need a different dash as the top has a large opening with a screen for the camera/projector below it. And as was mentioned earlier you need the windshield made for this. I have been installing windshields for 35 years and you have to use a specific windshield for the HUD to work.

Hey folks I just purchased my 1st Duramax. (2021 3500 Denali) Not new to diesels but new to the Duramax. Where can I find some details, drawings, etc. that will show me the lay out and systems on these engines. I pretty much got my old 6.0 powerstroke down but not this one yet. Just want to know the basics about the engine is all I'm looking for. Hate looking under the hood and not thoroughly knowing what I'm looking at. Id like to know things like intake paths as well as coolant and oil paths. Things like where the oil pump is located in the block etc. Not that I'm gonna be wrenching on it I just like to know these kinda things. Thanks