Mark57

Right? I think it's just the fact that GM is freaking out about people going into the PCM to alter any values that they see fit? Mark

So I read that you can go on the information screen and put in off road app and i guess choose air down tires, first I have heard of this with all the threads I've read. Mark

My 2024 Sierra 1500 came with one, and I just got a notice from the dealer to get my manual for my 2026 3500 dually. Mark

New dude your right same plug outboard BCM, most forward plug (black), number one pin slot.

NA. I also had my springs re-done and put Fox 2.5 HTOs on my 2026 4X4 dually, I put Airlift bags on. The ride is as good if not better then my wife's 2024 Sierra 4X4. The bags are for a load in the back to prevent sagging. With that in mind I will never have a 5th wheel or haul alot. I love the way it rides.

I've read threads of where people talk about getting there PCM reflashed for the lower values. I have a 2026 3500 dually and my aftermarket tires and wheels ride the best with 40PSI I ask the dealer they said that it would void my warranty, not sure if that's true. Thanks Mark

Put mine on 4 weeks ago, it made a big difference but I got the 2.5 HTOs

I have a 2024 Sierra and I saw in the 1500 section how to hook them up X1 pin 23 on the BCM, I just got a 2026 3500 and did a search could not find a topic,maybe my search was wrong. If there is one can someone show me the thread, Thanks Mark

I have a 1500 and that's the part number I got and it looks great in my black interior truck. Mark

My radar detectors GPS and my Navs GPS shows 4-5 MPH off. When I drive 74-80 I have to over shoot my MPH by the 5-7 MPH in order for my shift point to shift into OD.

I installed a leveling kit on my 2024 sierra 1500 and was waiting for Rough Country to release there speedometer correction, just saw they did last month, wow $900.00. Has anyone tried it need to get one my shift points are all off, any input would be apricated thanks. MARK https://www.roughcountry.com/product/speedometer-calibrator-90050?utm_source=google&utm_medium=cpcs&utm_campaign=18022125814|&utm_content=&utm_term=||c||fit_first_90050-b&gad_source=1&gclid=Cj0KCQjwjY64BhCaARIsAIfc7Ya1fBNfVab1cBnuIRHpEcr_Gb_9z47VTGbDRV2ONeFpHHfkXjlu0bUaAl30EALw_wcB

Funny my 2024 Sierra Pro has LEDs

No worries battery has been disconnected for a while and air bag has been removed. But thanks for the advice.

Can anyone give me the link for finding out the locations and what the wires are for the yellow plug under the air bag for the steering wheel controls on the left cruise control and the right for the phone and information center for a 2024 GMC SLT or AT4. I cant find it on the Upfitter site. Or is there some one that builds up or works on those wiring harness. Thanks

So I'm not sure about the different radios would I be able to buy the IOK 13" and hope its a plug and play. Thanks