ITM TPMS voided my BMW factory warranty! Use at your own risk!

[PeterStLouis]

I fell the need to share my story on all the BMW boards I can find about the issue I had this week at my BMW dealer. A couple months ago I was putting together a winter set for my 335i and I had gotten some Blizzak tires for my OEM wheels, since my other set of wheel are aftermarket and I had spent a good amount of money on them, I wanted to keep them nice through the winter. So to save some money I bought a set of ITM sensors off a seller on Ebay, that's when the issues began. The set worked on and off all though December, so I decided to take my car to the dealer to see what the issue was. After I described it to my service adviser, they took the car for the day and then called me later saying that since the sensors were not OE and they had seen this before and that I would have to change them out with OEM and get the car flashed. They also told me that this has voided my warranty for anything electronic on my car. So the whole thing has now cost me over $1700. not to mention the amount I paid for the junk ITM sensors. I contacted the seller to see if I could get my money back and I was told once they have been installed they are not returnable, how convenient...
I would tell anyone...use this stuff at your own risk..now I have a void warranty just cause I thought I was saving a few bucks.

[TPMSProAlbert]

Its not uncommon for this to happen especially since the TPM system is a safety feature. BMW does not want any liability as far as someone getting injured or killed due to faulty equipment.

[TPMS DOCTOR]

I fell the need to share my story on all the BMW boards I can find about the issue I had this week at my BMW dealer. A couple months ago I was putting together a winter set for my 335i and I had gotten some Blizzak tires for my OEM wheels, since my other set of wheel are aftermarket and I had spent a good amount of money on them, I wanted to keep them nice through the winter. So to save some money I bought a set of ITM sensors off a seller on Ebay, that's when the issues began. The set worked on and off all though December, so I decided to take my car to the dealer to see what the issue was. After I described it to my service adviser, they took the car for the day and then called me later saying that since the sensors were not OE and they had seen this before and that I would have to change them out with OEM and get the car flashed. They also told me that this has voided my warranty for anything electronic on my car. So the whole thing has now cost me over $1700. not to mention the amount I paid for the junk ITM sensors. I contacted the seller to see if I could get my money back and I was told once they have been installed they are not returnable, how convenient...
I would tell anyone...use this stuff at your own risk..now I have a void warranty just cause I thought I was saving a few bucks.

First off, i have never known an aftermarket tpms to void factory warranty. If the sensor is correctly transmitting then they are looking for an excuse to RIP YOU OFF. What you should have done was contact ITM to see if they had a local dealer that could have tested the sensors to diagnose the problem. Keep in mind, when you purchase many sensors from companies like tire rack they carry what is referred to as oem/aftermarket, these are sensors manufactured by the oe manufacturer but distributed outside of dealer. Does that mean they would void the warranty too?!
I carry ITM & schrader ez & would never allow a customer of mine to let a dealer get away with it. You should call up BMW NA & complain. If you still have the ITM's then find a place that can test them.