I think the dealership has the ability to change the default tire pressure for the TPMS system, but I don't think owners are able to do it without the GM Tech II scanner.

 

@tnine , as already mentioned, what you're proposing will not change the pressures that the system alerts at.
Head to the dealer and ask very nicely, be prepared to also pay a nominal fee. Some dealerships will do it for free, some want to charge a $100 or so diagnostic fee. Some dealerships won't do it at all even if you want to pay for it. In fact, GM corporate even sent a memo to the dealerships to not adjust the alert pressures.
Sorry for the ambiguity, but it's the reality of the situation.

 

I got my dealership to do it no problem and it was free

 

Find a tire shop and ask if they will do it for you. I did because dealer wanted $200

 

Both my local GMC and Chevy dealership told me "GMC has removed our ability to set that in the latest software release". I have no idea if this is actually true, or just what I'm being told so I go away. Does anyone know of any products I could purchase that I can do myself? I'm willing to spend some money on a piece of software and hardware to accomplish this, but I don't want to spend 1k upfront, then $500 a year just to get rid of a warning light, it's just not worth it. I flashed my old Tundra several times, so I'm pretty comfortable with the process assuming I get a decent quality programmer.

 

My 22’ 3500 Chevy Duramax set at 60

 

@tnine ,

This is well above and beyond just the tire thing, but there's lots of cool little options. My autosync is on its way....

AutoSync

AutoSync’s are finally back in stock!! Please note that current stock levels are limited so if you are interested in buying an AutoSync, please keep that in mind. The worldwide semiconductor shortage continues to cripple the electronics industry, and while I’m doing my best to continue to source...

www.btdieselworks.com

2019-2022 T1 Pickup Custom BCM Programming (For AutoSync Owners)

Extend your remote start and fob out of vehicle run time, add heated seats, fog lamps with high beams and MUCH more with the T1 WAMS spec BCM

www.whiteautoandmedia.com

 

Hi @viper8315. It looks like this system enables or disables the TPMS, but it won't allow me to retain the functionality and reduce the pressure, correct?

 

I'll try to get you an answer. I think it should allow adjustment. Yea, I wouldn't want to disable it either.

 

It looks like you can do both. Disable and alter.

 

Further confirmation....

 

@tnine , you'll have to get a hold of both vendors though and verify they support the 2021+ trucks.

Oh, and you buy the autosync first, then you buy the custom BCM programming from White Auto AFTER you receive your autosync.

 

@smeezy Where did you get that TPMS info? When I look at the description on the page @viper8315 sent, it only states

• TPMS Disable / Enable – Allows for TPMS to be removed from your vehicle OR added (which will require custom cluster programming to display tire pressures) WE ARE NOT LIABLE FOR ANY DAMAGES ARISING FROM REMOVAL OF THE TPMS SYSTEM.

I've programmed my Toyotas for years but being new to owning a GMC I have to re-learn everything. Thanks for all the help guys!

 

It's on the other link in his post.HERE

 

Less than 60 lbs in front and you going to be wearing out the edges of your tires. I run 65 in the factory 18's and they are wearing on the edges.

 

This may be true on YOUR tires, but not all tires are the same at specific psi, especially if you're not running the stock size tires/wheels.

 

@viper8315 I wanted to circle back and see if you were able to get your autosync installed and tested out. Did it end up working out for you? If so, I'll be getting one.

 

Yes, I did. I haven't adjusted the tire pressures yet, but I saw the option to do it on the autosync.

A very important note here. From my understanding, for the 17-19 trucks you can adjust the pressures with the autosync, or disable the system completely if you also purchase the BCM tuning from WAMS.
It seems like for the 20+ trucks there's only the option to disable TPMS with the full BCM programming.
Please do your own research and verify your application and needs/wants for your truck.

 

For what’s worth… I just picked up a 2022 3500 DRW… I have an Autel TS508 that will change the pressure alert setting, but not on the 22… in the Autel I selected a 2021 SRW and successfully changed the pressure setting… set mine to 65 from the original 80, also the myChevrolet app updated the pressure after about a day…

 

has this ended up working and keeping the lower pressure threshold parameters programmed?

 

Has worked with no issues, truck and OnStar have no complaints…

 

thank you. looks like the 2022 is still supported, but the '21 is. i think i am going to get one and try and use it like you did. looking at the supported tpms part sensor numbers, and the '21 and '22 look the same.

 

if you have a dually I would recommend setting the valve stems opposite each other rather than lined up, the TPMS tool can’t tell the inner from the outer when the stems are next to each other… not needed for setting the pressures but when using tool for rotating the tires

 

i have a '22 srw 3500.
any other tips or suggestions?

 

interesting find yesterday. '
so I had a shop attempt to reprogram the thresholds nearly 2 weeks ago. they said they could do it no problem.
they were using an autel scan tool, a big ipad looking one with wireless obd port connectivity.
the tech did the programming, but it didn't work. the rears still showed low, then he went to relearn all of the sensors and they all went blank. we thought they would reset after driving a bit, but they did not. the tech was busy with another job, so they asked for me to come back. work has gotten in the way, so i haven't been back yet.
in the mean time, i relearned the sensors with the cheap amazon tool i have. everything is fine, but the rears are still showing low.

so i have been reading about the autel programmers and all the different functions of each. it seems like the one the shop tech was using was one that has all the features. so it should have worked. but i also noticed that all codes and lights had to be clear before programming. so maybe this is why it didn't work. 🤷🏻‍♂️

I placed an order for the Autel TS508, it says it can reprogram for tire load index. should work, just waiting for it to arrive.

Here is the interesting find: on my chevy app and on my chevrolet.com, both show the recommended front tire pressures for my truck as 50 psi. 🤷🏻‍♂️ I know for a fact the recommended pressure is set at 60 from the factory, I have a 3500. it has always showed 60 until just recently. the app still shows the rear recommended as 80.
so this tells me the shops programming took affect for the front, but not the rear. I wonder why? I wonder if there was a step missed?

I am debating whether to go back to the shop tomorrow and have them reattempt to program, or just wait until the ordered unit arrives and try myself.
it the shop can do it, i can return the order...
what to do...

 

interesting find yesterday. '
so I had a shop attempt to reprogram the thresholds nearly 2 weeks ago. they said they could do it no problem.
they were using an autel scan tool, a big ipad looking one with wireless obd port connectivity.
the tech did the programming, but it didn't work. the rears still showed low, then he went to relearn all of the sensors and they all went blank. we thought they would reset after driving a bit, but they did not. the tech was busy with another job, so they asked for me to come back. work has gotten in the way, so i haven't been back yet.
in the mean time, i relearned the sensors with the cheap amazon tool i have. everything is fine, but the rears are still showing low.

so i have been reading about the autel programmers and all the different functions of each. it seems like the one the shop tech was using was one that has all the features. so it should have worked. but i also noticed that all codes and lights had to be clear before programming. so maybe this is why it didn't work. 🤷🏻‍♂️

I placed an order for the Autel TS508, it says it can reprogram for tire load index. should work, just waiting for it to arrive.

Here is the interesting find: on my chevy app and on my chevrolet.com, both show the recommended front tire pressures for my truck as 50 psi. 🤷🏻‍♂️ I know for a fact the recommended pressure is set at 60 from the factory, I have a 3500. it has always showed 60 until just recently. the app still shows the rear recommended as 80.
so this tells me the shops programming took affect for the front, but not the rear. I wonder why? I wonder if there was a step missed?

I am debating whether to go back to the shop tomorrow and have them reattempt to program, or just wait until the ordered unit arrives and try myself.
it the shop can do it, i can return the order...
what to do...

Sounds like the shop missed something, I attached a screenshot from the Chevy app, my tires were originally all set to 80psi..

 

Well, buying more tools is never a bad thing. If the scanner you bought is a full two way then you can perform some of the advanced relearn tests like on the NOX sensors should you ever have to replace them.
You know the old saying...if you want something done right, you have to do it yourself.
Not trying to slam your shop, just saying that you'll keep at it until it's right.

 

so i just got the tool.
decided to just go ahead and use it.
it took quite a while to register it and update it with the latest software.

took it out to the truck and hooked it up. went through all the proper selections. even selected 2022 model. everything populated the way it seems it should.
the tire pressures were indeed set to 50 psi front and 80 psi rear. this confirms the shop did not set the rears.

i reprogrammed the thresholds and confirmed. i disconnected the tool, gave it a few minutes, and then rechecked.
the programmed values were where i programmed them.

i am pretty sure it worked. now I will just have to drive around, then wait and see if the app and mychevrolet show the new programmed thresholds.

if it worked, it took longer to register and update the tool than it did to actually reprogram the truck

 

It will work just fine if your DIC shows it correctly, sometimes it takes the app 24 hours to update it, no idea why.

I went a different route since I already have an OBDLink MX+ dongle, got the Gretio app (iirc, that's @Snipesy 's app) and reprogrammed the sensors for my '22, was quite simple and pretty quick to do, but you do need to be a little bit of a computer techie geek to understand how to change the psi. The Chevy app updated the pressure settings within an hour or two iirc and I've had zero issues with it being like this, including a visit to the dealership who did an update to the truck.

 

I would be interested in your process to accomplish this reprogramming on Gretio. When you get some time. By the way, just got back from Kamuela to visit my son and family, and missed the eruption by just a week. Dang! That would have been so cool to see.

 

update. it worked. my app shows the new pressures. I am not actually getting a message for the rears stating the pressures are too high 😆
I haven't lowered them yet

 

Thanks for the feedback. I will be going this route with the TS508.