Jump to content

Added Trailer TPMS

bamorris2
 Share

Recommended Posts

66canss New Member

66canss

Posted
Posted

Thanks for the update. I'm in the same boat as you. I will wait to see if anything new transpires from the trip to the GM dealer. 

 

  • 5 months later...
64BAwagon Senior Enthusiast

64BAwagon

Posted
Posted

The way this add on module was explained to me is the 2021 and 2022 (possibly 2020) require an upgraded radio when choosing the trailer app for TPMS. The radio RPO codes for the trucks with the trailer TPMS is different than the ones without. My 2021 Silverado 3500HD was ordered without the trailer TPMS package and I had wanted to upgrade since the TPMS system that came on my fifth wheel is an absolute dumpster fire. The answer I got from my contact was that part of the approx $400 cost of the trailer TPMS was for the upgraded radio. GM has been changing their electronics architecture regularly so the 2019 might be possible to upgrade by adding the module but for sure the 21 and 22 are not. 

  • 1 month later...
cef2lion Enthusiast

cef2lion

Posted
Posted (edited)

I just purchased a 2022 Silverado ZR2 Refresh with 5K miles. I was wondering if it supports trailer tire pressure sensors?

 

It has the UET Trailer App. It doesn't have the PTT option on the window sticker or the build sheet. I was wondering if PTT is just to add sensors to the truck order?

 

I looked behind the license plate and there is what appears to be a TPMS module there. Unless it for the truck itself? Other threads have suggested the module behind the license plate is for trailer tire pressure sensors. The trailer app on the Informant screen doesn't show anything for learning trailer tire pressure sensors. I don't have sensors as yet as I wasn't sure if my ZR2 would support them.

 

I have not connected to my trailer as yet to see if that makes a difference. Its small and only has a 4 pin plug. I ordered a 7 to 4 pin adapter. I only have a 7 pin on the ZR2. The other connections on the bumper with the 7 pin are for the two TRG trailer camera provisions.

 

I should have the 4 pin adapter in a few days to find out but I thought I would ask here.

TTPMS.jpg

Edited by cef2lion
Typing corrections
  • 1 year later...
SkipHit Enthusiast

SkipHit

Posted
Posted
Just now, SkipHit said:

TPMS Module Wiring.pdf 65.08 kB · 0 downloads

I know this has been here awhile, however, I found that on my 19+ Silverado with the Trailer TPMS harness it has only the #3 and #4 pins installed. I have to install power and ground terminals for the module to be seen by the BCM. I've found that this dealer install option has their tech installing these terminals and functions properly once completed. Hope this helps i've added the wiring diagram for anyone who needs it.

  • 5 months later...
BTYLER12000 New Member

BTYLER12000

Posted
Posted

I have a 2020 Silverado Z71 LT. I purchased / installed the TPMS sensors and the module, and wired the positive and ground wires. I still only get the "test trailer lights". That's with the trailer hooked up and the TPMS sensor activated using the tool from Amazon. The only thing left is the radio. Does anyone know what the correct part number is for the radio? Or is there something else that I should try first?

  • 3 weeks later...
Drew6424 New Member

Drew6424

Posted
Posted (edited)

I have a 2022 Sierra 1500 AT4 3.0 and it has the module installed behind the license plate from the factory, truck did not come with the extra sensors for a trailer though.  
 

In my trailering app I don’t see anything at all for TPMS.  For those of you that are able to see trailer TPMS do you always have something visible in your trailer app, or only when connected to a trailer that has TPMS installed?   
 

Curious if I added TPMS sensors to my trailer if I would be good to go or not.  I see many appear to need a new radio but it seems odd to me that I would need that if the module is already installed on the truck when it was built.   

 

IMG_2749.jpeg

Edited by Drew6424
Added photo
  • 7 months later...
SkipHit Enthusiast

SkipHit

Posted
Posted (edited)
On 3/20/2025 at 10:26 AM, A Jackson said:

Anyone have luck adding the TTPMS module?

Yes, i just had to add power and a ground wire. No programming needed bcm recognized it right away. I did buy an OE connector with all 4 wires from Amazon for ease of install. Look at my above post for wiring. And I bought my module using myChevrolet points, it’s only $100 for the module.
Good luck

Edited by SkipHit
  • 3 weeks later...
KODwyer New Member

KODwyer

Posted
Posted
On 3/22/2025 at 9:28 AM, SkipHit said:

Yes, i just had to add power and a ground wire. No programming needed bcm recognized it right away. I did buy an OE connector with all 4 wires from Amazon for ease of install. Look at my above post for wiring. And I bought my module using myChevrolet points, it’s only $100 for the module.
Good luck

 

KODwyer New Member

KODwyer

Posted
Posted

This post above gives me hope!

 

I have a 2020 1500 and purchased the module. Got all excited - hooked it up and blam!!!! Got the same old test lights when entering trailer mode. No expanded menuing…. So begs the question. I see the wiring diagram - can’t for the life of me figure where or how to install the extra power or ground. Any pics or extra info on that maybe? 
 

and then - the connector that you got from Amazon. What was that for specifically? Any link to that? Or was that a nice to have not a need to have. 
 

Hoping that this extra wire attempt gets this going for us - am anxious to be a little safer riding the camper and knowing how those wheels are doing!

SkipHit Enthusiast

SkipHit

Posted
Posted (edited)
On 4/10/2025 at 7:44 PM, KODwyer said:

This post above gives me hope!

 

I have a 2020 1500 and purchased the module. Got all excited - hooked it up and blam!!!! Got the same old test lights when entering trailer mode. No expanded menuing…. So begs the question. I see the wiring diagram - can’t for the life of me figure where or how to install the extra power or ground. Any pics or extra info on that maybe? 
 

and then - the connector that you got from Amazon. What was that for specifically? Any link to that? Or was that a nice to have not a need to have. 
 

Hoping that this extra wire attempt gets this going for us - am anxious to be a little safer riding the camper and knowing how those wheels are doing!

https://a.co/d/j1N1uCl
here is the link to the OE 4 wire pigtail I ordered. Hope this helps. I just placed the missing wires into the original pigtail and color coded them then traced the power line and wired in a ground. I didn’t want to cut any original wires. They just clicked right in.

Edited by SkipHit
redwngr Senior Enthusiast

redwngr

Posted
Posted

Success or not making TTPMS work when it wasn't factory installed possibly depends on if the trim level had it as an available option.

 

Even in 2025 model year TTPMS is not available on all trims.

  • 2 months later...
DUNZEE New Member

DUNZEE

Posted
Posted

Trying to add this to my 2021 Silverado, where did you tap in to get the 12volts and ground?

  • 3 weeks later...
SkipHit Enthusiast

SkipHit

Posted
Posted
On 7/3/2025 at 5:01 PM, DUNZEE said:

Trying to add this to my 2021 Silverado, where did you tap in to get the 12volts and ground?

 

On 7/3/2025 at 5:01 PM, DUNZEE said:

Trying to add this to my 2021 Silverado, where did you tap in to get the 12volts and ground?

I tracked power to the trailer module above the spare

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • Chuck FB
      Software Update

      By Chuck FB · Posted

      I guess no surprise my guesses were wrong !, at least now I know if I ever happen to see it grayed out in my own truck as to what is going on.    I never happened to catch my truck with it grayed out, it seemed every time I would test to see if there was an update it never found anything and yet more than once I would check to see if there was an update and there was nothing, then a day later or even that same morning I would drive to town and after more than one engine shut down in town as I did my errands it would pop up that there is an update now ready to install and the only place I have a connection to the internet is at home by wifi so its not as if it grabbed the download while driving. I don't trust these new vehicles due to all the crap they can decide to do while sitting for some days not running and run the battery down so most of the time if I know the truck will sit for a few days I plug in the battery tender I have mounted under the hood and so the only time the truck must have downloaded software was when it was sitting in the garage where the signal is awful but I have that tender plugged in and somehow it managed to download it. I honestly detest all this crap, way to easy to leave a person stranded.    Since I don't trust any of it I don't do the install of the already downloaded software until I get home and sometimes have even sat in the truck to watch what its doing as its going through the process to its conclusion as its not like it is set up that it will tell you the next time you fire up the engine that the update that was initialed actually installed or installed properly. Yes I can go into the updates and see the list. After I go through the install where I feel its safe to do so in case it breaks down as a result, I will plug in the battery tender after the fact to recharge as I don't know how much power its taking just to do the install and that can take a while for it to install. 
    • nfisherman
      Software Update

      By nfisherman · Posted

      Thanks for the reply. All settings were correct and the engine was off, as it was supposed to be. It turned out to be something simple. I took a drive for about an hour. I must have had a low battery without knowing it. The voltage gauge on the display looked ok. At the end of my drive, I shut off the engine and the update prompt came up and it updated normally. It’s ironic because one of the features of the update is a reduction of battery drain. 
    • kickass audio
      Software Update

      By kickass audio · Posted

      when it's greyed out that is it's way of telling you that it's downloading the patch in the background. Eventually it will be fully downloaded and then it will prompt you at ignition shut down to run the update. I highly recommend doing the update once you get home and can run it a few times. I've had several issues with updates not going the first time around and I had to retry the update multiple times in my driveway before it was successful.   Some updates are huge and take awhile to download. You can help it by connecting to your home WiFi and keep the truck on service mode for the ignition and keep it alive for awhile on a battery charger too. There are specs it needs to be in for updating such as a full enough battery charge, no running ignition, etc.
    • Chuck FB
      Software Update

      By Chuck FB · Posted

      I am not techy at all but wondered if you have the truck running but sitting still in park as some functions gray out as soon as the truck is moving. I believe in the settings for updates you can choose for it NOT to update and I wonder by chance if maybe that was chosen before and now it won't allow you to chose to press update, I think that is back in the settings menu where it has all the items one wants on or off etc. Also I assume you have a wifi connection and checked that it has some signal strength, not that it would have anything to do with the grayed out updates choice in that case. What I am thinking out loud of here may be be of no value but thought I would suggest it, sometimes it can be the simplest thing that resolves an issue.  
    • Chuck FB
      Dave's Auto (custom engine builder) tear down of L8T

      By Chuck FB · Posted

      The so called rare failure that some certainly liked to tout ( die hard Ford fan boys ) as per the lifter failing and wiping out the cam. Back when it started happening the blame was being pointed to the lifters and honestly I never did hear anything myself conclusively one way or the other on that. Ford themselves in I believe 2024 had a technical bulletin I will call it that came out and for some engine platforms they were reprograming the engines idle speed but also they had a software update for the oil pump which then some time later was said what that software update did as to be increasing the oil pressure at idle. It is a good question if that issue was completely solved as one Ford specialist mechanic youtuber said he saw failures after that time period. Like anything there would be the variables, what oil is being used and the OCI and how much idle time gets put on an engine. I've seen some comments to claim that the L8T isn't so happy with high idle time either but I also know that companies that require their vehicle to idle a lot on the job don't tend to get the oil changed often enough for all those hours of idle time and go off of the odometer. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...