Jump to content

Trailer Tire Pressure Monitoring System (TTPMS)

KC10Chief

By KC10Chief
in Modifications & Accessories

 Share

Recommended Posts

FirstAscent Enthusiast

FirstAscent

Posted
Posted
does anyone know what the diameter of the stem on the supplied ones from GM Measure (.433 or .625 diameter at sealing point). Found some on line but think they are the smaller size.

Here are some photos from the ones supplied with my 2019 1500 high country. I imagine all the new “trailer” TPMS from GM are the same?

043198fdc70798887037d9fd7a306eb1.jpga78faf7ada98a1e28bd54b5eef953d25.jpg3462c1169d13a4eef76bcb4e325b1c43.jpg9f68d6ed92d1b2ed1193523495eb1ccf.jpg
  • Replies 71
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

elag
elag

So I've been reading these forums for a few days now. The GM Trailer TPMS sensors are ridiculously over priced. Average $100 each Canadian or $70 each US. So I tested the sensors on my truck (2020 Sie

Leon Baehre
Leon Baehre

I ordered a set with the truck which was made to order, cost was $55, then decided to get a set for a 2nd trailer, dealer ordered thru the parts department and charged me $55.  Dealer installed at no

rblanch
rblanch

I run them on my G rated trailer tires. The highest you can set them is 100 PSI  I figured that would still work if they notified me below 100 it still should  be  time to pull over before a blow out.

Posted Images

  • 2 weeks later...
SenecaDriver Enthusiast

SenecaDriver

Posted
Posted
On 3/11/2020 at 7:48 AM, rblanch said:

I run them on my G rated trailer tires. The highest you can set them is 100 PSI  I figured that would still work if they notified me below 100 it still should  be  time to pull over before a blow out. They also give tire temp.

My trailer rims had the large hole, supplied sensors are for the small hole rim,  I bought 6 metal stems that had rubber seal for both hole sizes.  Slide the large seal over the supplied stem , use the washer and nut from the metal stem, you now have a stem for the larger hole rim.  Do not remove any of existing seal from the supplied stems. Tried that on one and it leaked.  All working as advertised on all 6 wheels.  

SenecaDriver Enthusiast

SenecaDriver

Posted
Posted

Do you really need to run 110 psi in load range G tires,  I run 85 cold which is 95 when hot.  No problems.  I was running 105 psi on my 18 wheeler grain trucks running 100,000 lb gross, blowing lots of tires.  I dropped air down to 90 psi and now only blow 1 or 2 a year out of 8 trucks.  I do not run max on tire sidewall on pickups either, just got 50,000 miles on first set of tires on 2500HD running 60 psi loaded to 9400 lbs all the time except when pulling gooseneck loaded to 18,000 lbs.  I did air rears to 70psi. 

david5311 Enthusiast

david5311

Posted
Posted
20 hours ago, SenecaDriver said:

My trailer rims had the large hole, supplied sensors are for the small hole rim,  I bought 6 metal stems that had rubber seal for both hole sizes.  Slide the large seal over the supplied stem , use the washer and nut from the metal stem, you now have a stem for the larger hole rim.  Do not remove any of existing seal from the supplied stems. Tried that on one and it leaked.  All working as advertised on all 6 wheels.  

Can you give us where you bought these metal stems and part numbers?

Thanks

SenecaDriver Enthusiast

SenecaDriver

Posted
Posted

Can be bought at most tire shops, it’s a metal high pressure stem that comes with rubber seal for the small and large hole think .453 and .625 holes  my supply came from Myers Tire Supply.  Item 21583 

Steve Hougham Enthusiast

Steve Hougham

Posted
Posted

One place I read that if you have, as in my case, a 2020 Chevy 2500 HD,  the Advanced Trailering System option,  that the Tire Pressure Monitoring System is included and that 4 sensors are provided.  My dealership says I have to buy the sensors.  Which is correct?    

FirstAscent Enthusiast

FirstAscent

Posted
Posted

unfortunately, the trailer TPMS sensors are always an additional item now if they didn't get included in the build from the factory. It's only a $50 option from the factory, they should just include that always IMO.

 

in 2019, on some of the higher trim 1500's (LTZ and High country I believe) they came standard for free. That changed in 2020 though and now it's not free on any model/trims.

 

I have a fully loaded 3500 high country. my specific build didn't have the trailer TPMS option selected so had to purchase separately. 

 

So first check your build sheet to make sure it wasn't on there. If you do see the $50 option then your dealer owes you them. If not, it's on you :( 

redwngr Senior Enthusiast

redwngr

Posted
Posted (edited)

If you have a complete build sheet, the order code you're looking for is PTT is the code for the sensor set.

 

PTT         Trailer Tire Pressure Monitor Sensors, includes set of 4 sensors. Sensor functionality requires (U1D) In-vehicle Trailering App to be ordered with the vehicle and installed by the factory. Sensors will be shipped loose with the truck and will need to be installed on trailer by customer. System is capable of monitoring up to 6 wheels. Additional or replacement sensors are available through GM Accessories

 

On LT - Requires (PCM) Convenience Package II or (ZL6) Advanced Trailering Package. 

On SLE - Requires (ZL6) ProGrade Trailering System or (PDQ) Preferred Package. Not available with (ZW9) pickup bed delete.
On SLT - Not available with (ZW9) pickup bed delete.

 

Higher trims have no restriction. 

Lower trims - not available. 

Edited by redwngr
  • 1 month later...
iflypigs Enthusiast

iflypigs

Posted
Posted (edited)

Does anyone know the part number for the sensors?  I just purchased a 2020 Sierra 3500 Denali.  It did not have the $50 trailer TPMS option (comes with 4 sensors), but obviously has the trailering app.  The dealer quoted me $150 for 2 sensors.  They didn't even know if they would work on the truck.  They thought the option may have had to be programmed at the factory.  From this thread, that does not appear correct?  I'd like to get two sets of 4 for 2 trailers.

 

Disregard...I see the part number was shown in one of the photos above.

Edited by iflypigs
FirstAscent Enthusiast

FirstAscent

Posted
Posted
Does anyone know the part number for the sensors?  I just purchased a 2020 Sierra 3500 Denali.  It did not have the $50 trailer TPMS option (comes with 4 sensors), but obviously has the trailering app.  The dealer quoted me $150 for 2 sensors.  They didn't even know if they would work on the truck.  They thought the option may have had to be programmed at the factory.  From this thread, that does not appear correct?  I'd like to get two sets of 4 for 2 trailers.

 

Disregard...I see the part number was shown in one of the photos above.

[edit] the below info may be incorrect, see redwngr post below mine.

 

 

 

Silly dealers, never ceases to amaze me the lack of knowledge.

 

It’s just silly what they charge after the fact. Some options I get it, makes sense some options would be cheaper to install at the factory during assembly. But TPMS Sensors are just loosely thrown in the glove box!

 

They will work on your truck, you don’t need to program the option or anything like that. Your truck is ready.

 

You will have to have your truck “learn” each sensor but you don’t need the dealer for that.

redwngr Senior Enthusiast

redwngr

Posted
Posted

According to the order guide:

 

2020 2500 Denali:

    U1D    In-vehicle Trailering App, System, includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder, trailer electrical diagnostics and Trailer Tire Pressure Monitor System module
SLE -  Included and only available with (ZL6) ProGrade Trailering System or with (PDQ) Preferred Package. Includes trailer tire pressure monitoring alert ONLY when (PTT) trailer tire pressure monitor system is factory ordered and sensors are installed 
SLT -  Includes trailer tire pressure monitoring alert ONLY when (PTT) trailer tire pressure monitor system is factory ordered and sensors are installed. With (ZW9) pickup bed delete no provision for a trailer tire pressure monitor system will exist but all the other (U1D) features will remain. 
AT4 and Denall -  Includes trailer tire pressure monitoring alert ONLY when (PTT) trailer tire pressure monitor system is factory ordered and sensors are installed 

Base sierra  -- not available

 

PTT         Trailer Tire Pressure Monitor Sensors, includes set of 4 sensors. Sensor functionality requires (U1D) In-vehicle Trailering App to be ordered with the vehicle and installed by the factory. Sensors will be shipped loose with the truck and will need to be installed on trailer by customer. System is capable of monitoring up to 6 wheels. Additional or replacement sensors are available through GM Accessories
SLE -  Requires (ZL6) ProGrade Trailering System or (PDQ) Preferred Package. Not available with (ZW9) pickup bed delete. 
SLT -  Not available with (ZW9) pickup bed delete. 

Optional, but no restrictions on AT4 and Denali

Base sierra - not available. 

 

 

Seems like trailer tire monitoring may not work if PTT sensors weren't factory ordered.

 

  • Like 1
FirstAscent Enthusiast

FirstAscent

Posted
Posted
According to the order guide:
 
2020 2500 Denali:
    U1D    In-vehicle Trailering App, System, includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder, trailer electrical diagnostics and Trailer Tire Pressure Monitor System module
SLE -  Included and only available with (ZL6) ProGrade Trailering System or with (PDQ) Preferred Package. Includes trailer tire pressure monitoring alert ONLY when (PTT) trailer tire pressure monitor system is factory ordered and sensors are installed 
SLT -  Includes trailer tire pressure monitoring alert ONLY when (PTT) trailer tire pressure monitor system is factory ordered and sensors are installed. With (ZW9) pickup bed delete no provision for a trailer tire pressure monitor system will exist but all the other (U1D) features will remain. 
AT4 and Denall -  Includes trailer tire pressure monitoring alert ONLY when (PTT) trailer tire pressure monitor system is factory ordered and sensors are installed 
Base sierra  -- not available
 
PTT         Trailer Tire Pressure Monitor Sensors, includes set of 4 sensors. Sensor functionality requires (U1D) In-vehicle Trailering App to be ordered with the vehicle and installed by the factory. Sensors will be shipped loose with the truck and will need to be installed on trailer by customer. System is capable of monitoring up to 6 wheels. Additional or replacement sensors are available through GM Accessories
SLE -  Requires (ZL6) ProGrade Trailering System or (PDQ) Preferred Package. Not available with (ZW9) pickup bed delete. 
SLT -  Not available with (ZW9) pickup bed delete. 
Optional, but no restrictions on AT4 and Denali
Base sierra - not available. 
 
 
Seems like trailer tire monitoring may not work if PTT sensors weren't factory ordered.
 

Great info, although very odd if that’s accurate. I see quite a few trucks without the PTT option. There’s gotta be a way to still add that functionality especially because these trucks are meant for towing and hauling.

Now it makes me wonder about mine. I have the trailering app but my truck didn’t come with PTT from factory, I have a silverado high country. But I fully intend to add 6 TPMS to my fifth wheel.


Sent from my iPhone using Tapatalk Pro
redwngr Senior Enthusiast

redwngr

Posted
Posted
1 hour ago, FirstAscent said:


Great info, although very odd if that’s accurate. I see quite a few trucks without the PTT option. There’s gotta be a way to still add that functionality especially because these trucks are meant for towing and hauling.

Now it makes me wonder about mine. I have the trailering app but my truck didn’t come with PTT from factory, I have a silverado high country. But I fully intend to add 6 TPMS to my fifth wheel.


Sent from my iPhone using Tapatalk Pro

I'm curious what you find out!

 

If the receiver module and/or programming is omitted without the PTT option it will certainly be disappointing if this can't be upgraded after build. 

 

 

FirstAscent Enthusiast

FirstAscent

Posted
Posted
I'm curious what you find out!
 
If the receiver module and/or programming is omitted without the PTT option it will certainly be disappointing if this can't be upgraded after build. 
 
 

I think I’m good. According to this brochure I found it says the advanced trailer package is standard on high country and includes the TPMS module. Not to be confused with the TPMS Sensors which I would still need to buy, but the functionality is there.

78b028e771d10f295b79ade41ebc826a.png

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

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.5k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,914
    Total Members
    8,960
    Most Online
    AidenVorpagel
    Newest Member
    AidenVorpagel
    Joined

  • Who's Online   2 Members, 0 Anonymous, 1,290 Guests (See full list)

  • Latest Articles

  • Posts

    • jake111
      Gasser Subforum Has Been Quiet - - So, Regenerative Braking and Using L10

      By jake111 · Posted

      Thanks newdude!  By the time manual selection is needed, I'm probably too much of a control-freak to depend on the transmission sensing braking to activate automatic downshifting.  I would be anticipating the situation and already be manually downshifting.   This truck replaced a 2004.5 LLY diesel with the Allison 5-speed.  Putting it in T/H made noticeable differences (when the torque converter locked, upshift points, downshift behavior).  On this 2024 gasser with the 10L1000 I haven't been able to detect much, if any, difference.  Ok, I can never tell now when the torque converter locks up.  But I also don't notice differences in shifting.  For downhills, I've probably already manually downshifted by then anyway.  Since it's also more awkward (than the 2004.5) to engage/disengage I don't even bother.  Or maybe it doesn't really matter with just a 3k lb. camper in the bed?   Thanks also for the list of reasons the charging system might select various voltages.  However, what I am seeing doesn't fall into any of those categories.  It very definitely, and very consistently, rises after coasting/braking.  Maybe not immediately, but not very long after coasting/braking.  Very consistently drops voltage when no longer coasting/braking.  It might also be interacting with the camper battery charging (I might disconnect the camper and see if it changes the charging behavior).  I also need to recheck turning on headlights for when I want to force it to charge the camper.   Another JR, in June I converted the camper to LiFePO4.  Since it's not a good idea to try to charge lithiums directly using truck, I installed a Victron Orion XS DC-DC charger (which BTW is AMAZING!!).  Being cheap, I only had to buy that one item (besides the battery, of course) to do the conversion.  The camper OEM 120v battery charger (only 19 years old and works perfectly) and the truck feed the input to the DC-DC charger (not at the same time).  But I didn't want the camper charger feeding back to the truck so I kept the old separator.  I considered replacing the separator with a 30amp diode but that means more work and might add another 1/2 volt drop.  One thing that surprised me was the voltage drop over the long 10awg wire run, so I can only charge smoothly at 8 amps (because the DC-DC charger is completely configurable).  Another reason I don't want an added voltage drop with the diode.  I might also be a little lazy but all this work is being done under the sink with a small cabinet opening.    
    • davester
      cam upgrade in CA

      By davester · Posted

      apparently CA smog is (or at least was)  checking that the vehicle is using the oem and/or a ca smog approved tune, so I expect you'll fail inspection doing it.
    • davester
      Possible lifter tick after DOD delete

      By davester · Posted

      yes, leaking exhaust will mess up o2 sensor readings, which in turn messes up fuel trims.
    • Grumpy Bear
      Sugar Bears 2015 GMC Terrain SLE-2 2.4 AWD

      By Grumpy Bear · Posted

      286,740 Mile Services   8/6/2026   New AC Compressor. Refrigerant oil and dye, evacuate and charge system.  New exhaust system from cat back.  New Iridium plugs plus replace #3 coil Repair/rewire headlamp wiring (passenger side) and replace all forward bulbs. Polish lenses of both assemblies.  Pull rear rotors, clean and adjust parking assembly. Inspect, clean and grease front calipers. Check pads and shoes.  4 wheel power bleed of brake system. Dot 4 Reset idle speed 50 rpm higher New Serpentine belt.    Will need new pads in the rear in about 5K more miles.    Tax Title and License out the door just short of a grand.    AC clutch had bitten the dust. 1 year warranty on the pick and save replacement. Thing will make a Polar Bear cry Uncle.  He spent quite some time on the wiring. It was in the harness and he does nothing half. I got off cheap. I have considerable more light down the road. Sylvania Silver Star replacements.  Gas seal between the porcelain and shell of plug #3 was blown, cooked the coil. That was the cold miss.  Love the new exhaust. I can sneak into the neighborhood again.  Nice to have a working parking brake again. Belle Tire never got it done. That was disappointing.    This was one of her bigger bills and still way cheaper than a payment even given the oil consumption. This thing cost me under a hundred a month in repairs and normal routine costs. What is my incentive to replace it? 🤔           
    • AidenVorpagel
      cam upgrade in CA

      By AidenVorpagel · Posted

      hello I recently bought a 2012 gmc 1500 with a 5.3 and have a AFM disabler on it I'm interested in doing a cam but I'm worried if I remove the AFM system I will fail smog does anyone have info if they are able to detect that or a work around to it (not talking about hot smogging) please let me know thank you  

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...