Tire pressure monitor not working

[signguy]

I have a 2007 Yukon and when I added air to the tires last week I started getting the message on my DIC and it is there all the time now...
I have tried the "switch on, apply parking brake and turn the light switch on and off 4 times" method and it doesn't work...?
Any advice given would be appreciated...
Thanx!

 

[iwaslowr]

Welcome to the forum!

What message is displaying in the DIC?

 

[signguy]

Welcome to the forum!

What message is displaying in the DIC?

it says "SERVICE TIRE MONITOR SYSTEM"
Thanx!

 

[mikeb33]

One of them may not be communicating. The reset procedure would not work then.