Tire pressure monitors and aftermarket wheels

[j_beede]

My MY05 997 is equipped with OZ Ultraleggera wheels--no TPMS. I suppose I am a contrarian in that I would like to have active pressure monitoring. The reason being that I run 25 or 30 series tires on my 20" rims and unintended reduced pressure often means wheel damage. 

 

Since my OZ wheels do not have TPMS I would expect to get a "failed transmitter" or similar warning or code. Was my car equipped with TPMS from the factory? Can I buy/add monitors to my 3rd party wheels and enable (re-enable) monitoring?

 

Pardon my ignorance on this topic... I live in a state that does not require TPMS.

[AP 997S]

TPMS was not standard in MY2005. It might have been optional but if you aren't getting a TPMS error signal I suspect your 997 doesn't have it. 

[JFP in PA]

My MY05 997 is equipped with OZ Ultraleggera wheels--no TPMS. I suppose I am a contrarian in that I would like to have active pressure monitoring. The reason being that I run 25 or 30 series tires on my 20" rims and unintended reduced pressure often means wheel damage. 

 

Since my OZ wheels do not have TPMS I would expect to get a "failed transmitter" or similar warning or code. Was my car equipped with TPMS from the factory? Can I buy/add monitors to my 3rd party wheels and enable (re-enable) monitoring?

 

Pardon my ignorance on this topic... I live in a state that does not require TPMS.

 

On an 05, TPMS was an option, so your car is not set up for it, but you can add it with an aftermarket kit.  And use of TPMS became a federal requirement as of 2007, states had no say in it.

[j_beede]

As I expected. Thanks for the confirmation. I do not plan to add TPMS. 

[j_beede]

FYI: Update... I bought one of those cheap after market add-on pressure monitoring kits on Amazon. The kit consists of four thread-on transmitters and a receiver that plugs into the accessory outlet. It works well and has saved my (soft) OZ wheels a trip to the straightening shop on more than one occasion. The receiver is actually small enough that the ash tray lid just barely clears it and closes with just a little drag. It's been a great add-on for me.