SOLVED: TPMS won't stay learned?

[KidWgn]

The multi-frequency sensor is called a T10 sensor, if that info helps at all. Operates between 315 mhz to 455 mhz....I think.

I hadn't heard them called that before. Schrader calls it their "EZ-sensor GO".

 

[Fless]

The multi-frequency sensor is called a T10 sensor, if that info helps at all. Operates between 315 mhz to 455 mhz....I think.

Not "between," it's either or, depending on the vehicle requirements. Frequency is programmed when the sensors are initially activated by a programming tool (not to be confused with an inexpensive tool used to re-learn wheel positions).

EDIT: I wonder if the sensors were programmed ("initialized" is what I'd call it) for the truck, or they're not pre-programmed.

You'll probably need a good tool that will read their IDs and write them to the truck. I have an Autel scanner that can do the initial programming of Autel MX-sensor sensors, as well as write them to the truck through the OBD port.

 

[bill1013]

2012 Tahoe LTZ

New Schrader 33560 TPMS sensors

All remotes work perfectly and do not lose sync, so I don't think it's a problem with the RDL module.

I can succesfully program the TPMS sensors, and view pressures on the DIC.

As soon as I turn the truck off and back on, I get "--" on each tire again.

I'm losing my marbles here. Are the sensors faulty? Were they programmed incorrectly

It’s important to get TPMS that are made or are compatible to your vehicle’s computer system. Also, not installing them right away or waiting a year might be a problem. Hope you get it figured out.

 

[KidWgn]

SOLVED!

Somehow the RCDLR had been..."cleared"?

I used my handy-dandy Launch bi-directional scanner to pull it up, and lo-and-behold, the tire information was blank. Rewrote it as P-Metric with a "suggested pressure" of 36 psi (correct load rating on a 285/45-22) and everything is working now!

 

[KidWgn]

Not "between," it's either or, depending on the vehicle requirements. Frequency is programmed when the sensors are initially activated by a programming tool (not to be confused with an inexpensive tool used to re-learn wheel positions).

EDIT: I wonder if the sensors were programmed ("initialized" is what I'd call it) for the truck, or they're not pre-programmed.

You'll probably need a good tool that will read their IDs and write them to the truck. I have an Autel scanner that can do the initial programming of Autel MX-sensor sensors, as well as write them to the truck through the OBD port.

That's what I was afraid of, is that they were not initialized as 315mhz when they were installed. I wouldn't think that they would temporarily read correctly if that were the case, though, which is why I was so stumped on this one.

 

[Joseph Garcia]

Thank you for posting your solution to your issue. Our collective knowledge base has been increased.

 

[KidWgn]

Thank you for posting your solution to your issue. Our collective knowledge base has been increased.

That's why I still use forums in 2025, lol. You can actually search for things.

Not to mention, facebook groups are chock full of the same question about oil pressure 300 times a week.