Tpms failure...

[Bonedogg1]

Hey all!
Love to read and learn from the posts here but I'm in a posiion and it's my turn to ask for help....
Today I got a DIC message on my 07 tahoe to service tpms system and all tires show dashes where the pressures would be.
The tpms sensors are only 2 years old and I haven't done any tire work recently except to add a few pounds prior to a road trip.
Nothing I haven't done many times before with no tpms reactions.
But I tried to use my code scanner and nothing comes up.
I tried a sensor relearn but when pressing the "check mark" button to put the system into relearn active mode... The message "check tpms system" just flashes once.... Not entering relearn active mode.
And then nothing.
Any thoughts or anyone had this experience?
I watched the youtube videos and it seems simple but it isn't working this time...

 

[Mechanic421]

Need to figure out how to get the codes out. I am not sure about the 07,but my 06 stores codes in the keyless module which is the right side window switch.

 

[swathdiver]

Right, he needs an advanced scan tool like the Tech2 that can read BCM codes. The TPMS system is located in the RCDL module.

You have have a failure of that module, the BCM or it could be that the batteries died. Don't discount some kind of interference either. Drive it around and see if they come back online.

 

[kbuskill]

Does your remote/keyless entry function correctly???

Does your remote start, assuming you have it, work correctly???