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Each of the four tire pressure sensors have a unique identification code (it is not called a VIN #) that must be uploaded to the vehicle ECU through the diagnostic port in the driver side (left) footwell. If the TLMS system has been working properly for 28 months, then the cause of the current problem is not from the selling dealer switching wheels. It is more likely that one of the four TLMS sensors has failed or that the TLMS system needs to be reset due to altering tire pressures.. If a sensor has failed, a competent tire shop should be able to determine which sensor(s) has failed by holding an appropriate electronic tool next to it and "pinging" it to determine it's ID code and battery health. TLMS batteries usually last up to 10 years from my experience but they can fail much earlier and can be damaged during a flat tire repair. After tire pressures have been corrected or after a flat tire has been fixed and reinstalled, it can be necessary to initialize the TLMS system by pressing the reset button under the dashboard until the TLMS warning light blinks three times. It's described in the Do-it-yourself Maintenance section of your owners manual.

Like everyone before me, I hate the RFT's. I don't have to mention all the abysmal behavior that they cause for this nice car. The big difference with me, and most posts is that I didn't buy this car to win the Grand Prix. I want it to be luxurious first , and very sporty second. Any set of rims that has a 5 bolt holes with a 114.3 MM bolt pattern, and an offset of between 35 to 50 MM will work fine on your SC-430. There is plenty of room in the fender wells. So If you have leaking rims, or don't like the looks of the "Plates, " feel fee to buy just about anything you want with the above spec. 16" through 20" rims are just fine, and will not interfere with your brake calipers. Changing tire size and diameter does not, I repeat, does not adversly effect the handling or tracking of the vehicle. I choose to get not only a comfortable ride, but tires that last about four times as long as the RFT's. I chose the Michelin Primacy MXM4's. These are super quite, very long life, have extremely great handling, and they looks really stylish on the car. The size I got was the 245x45R17. The reason I chose this size is that they have the same tread width for traction, and the same diameter 25.7", so the speedometer stays accurate. Additionally the 45 side wall ratio gave a nicer smoother ride with superb handling. See my Member photo. I bought a set 17" X 7.5" X 40mm offset Velox Borzoi rims from Costco for under five hundered dollars, and the tires under eight hundred dollars. The best money I ever spent on the car! I am just delighted with this choice and strongly recomnd this to anyone who is tired of their SC-430 riding like a truck!