Aftermarket Wheels & Service Tire Pressure Monitor - SVC TPM

[ShaunH3]

Is this a dealer required fix, or can I just swap out the caps from the stock wheels??

The 22" wheels look nice, but the damn SVC TPM is getting annoying now.

[f5fstop]

Not sure of your question.
If you are asking can you take your TPM sensors from the stock rims to the new rims, the answer is yes, if they will fit. The tire valve is part of the sensor.
If they don't fit, you might be able to install them to the center of the rim using a large tie strap. People did this with Vettes and it worked ok.

[ShaunH3]

Yeah, that was what I was wondeirng........if the actual TPM Sensors were in the vavlestem caps. I figured they were, but just wanted to make sure. I'm gonna try swapping those from my stock wheels and see if I can do the reset with the computer then.

Thanks!

[f5fstop]

Originally Posted by ShaunH3

Yeah, that was what I was wondeirng........if the actual TPM Sensors were in the vavlestem caps. I figured they were, but just wanted to make sure. I'm gonna try swapping those from my stock wheels and see if I can do the reset with the computer then.

Thanks!

The actual sensor is inside mounted to the rim, the valve is metal and acts as a antenna to send the signal to the BCM.
If your new rims have the right mounting surface and distance from the mounting surface to the hold for the stem, the sensors should fit.
However, I will guess that not all aftermarket rims will allow for the installation of the sensor.
On vettes, if the sensor did not fit, they would epoxy the sensor to the center of the rim, and help hold with a giant tie strap (I have some that are three feet long). Then install a standard rubber valve stem and the tire. All the sensor has to do is send a signal with the pressure reading.
If the signal from the sensor reaches the BCM all is well. If it won't then the TPM will turn on warning you of a problem.
The dealer does not have any way to turn this off since it is mandated by a Federal Law.

[ShaunH3]

So if the valve stem cap is moreless just the transmitter to the BCM and the actual sensor is mounted inside the tire on the wheel, will just swapping the valve stem caps prove useless? If there is no sensor to transmit the data, swapping valve stem caps probably wouldn't be much use, would it?

[NM H3]

The valve stem cap is just a cap, nothing else in relation to the TPM. The sensor is inside of the tire, connected to the metal valve stem. The metal valve stem serves as the antenna for the sensor.
I bought my new wheels from Discount Tire, and they took the sensors out of my old wheels, and put them into the new ones. They also put standard stems back onto my old wheels without any additional charge.