Service TPM light ?

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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by GetzH3:
Once i put my new wheels on my H3.. This light keeps coming on the dash..It says service TPM....
I went to the dealer to have it shut off..But they said my truck did not have the sensors for the tires on it...If it didn't have the sensors, why is the F'in light coming on?

Help me make sence of this!!!
Thanks </div></BLOCKQUOTE>

I believe HummerNewbie hit it on the head.

All H3s come from the factory with tire pressure sensors in all five tires. But, I have to ask, did the person who installed your new rims, remove the sensors from the factory wheels and install on the new wheels?
Possibly, this is what the dealer means when he said the truck did not have sensors. The factory sensors are part of the valve stem and the stem is metal (stem is actually the antenna), if your new wheels have rubber stems, you don't have sensors.
The TPM message will go on for a malfunctioning sensor, or system, as well as low tire pressure(s). If there are no sensors, the system has to assume, all four are bad, or require reprogramming. Without sensors, your TPM message will always go off, and there is nothing you can do about it. (Please don't blame GM for this, call your local congressman, it is a Federal Law.)
If the tires do have the sensors, possibly the problem is the installer of your new wheels, didn't put the sensors back in their original location in respect to the corners of the vehicle. The system has to learn which sensor is at which corner of the vehicle (program). If this is so, there is a reprogram procedure in the owner's manual, or the dealer can use a special tool that saves some time, but will cost you. However, I believe from your explanation the tech checked the tires, saw there were no sensors, and that is what the tech told you.

So, we are back to HummerNewbie, and his statement.