5 ms·

How can tires broadcast the VIN? I bought my tire+wheel package on Tirerack, certainly didn't tell them my VIN.

• ck2 12y ago
  I was under the impression factory TPMS have the vin. It's been mandatory in the US since 2008 to have TPMS so all 2008 and newer cars have an oem system.
  • digitalneal 12y ago
    Signal isn't really that strong, a few feet away and your not gonna be able to capture that data.
    • jonlucc 12y ago
      I suppose it would be simple to embed the receiver in the street. You know with decent certainty where the tires will be, so if the signal works one wheel-diameter away it will be picked up.
  • rconti 12y ago
    Yes and no. Direct TPMS sensors that use RFID transmit a serial number but probably not the VIN. Many cars use indirect TPMS which uses the ABS sensors to measure rotational difference between wheels, thus indicating a low-pressure situation. No RFID is used.
  • emidln 12y ago
    When I worked on a TPMS system around 2007, we couldn't get the VIN off a sensor. We could get the sensor id and maybe the tire id (depending on the type of TPMS system). We had access to the VIN in our flash, as well as access to it over the CAN bus from a number of sources. I'd expect that you would have a very difficult time measuring random vehicles sensor ids and readings if they're just driving by because of how low throughput the system was.