TPM serial-numbers identifiers: two options

Discussion in 'Prius v Care, Maintenance and Troubleshooting' started by gatorback, Jul 21, 2025 at 9:54 PM.

  1. gatorback

    gatorback New Member

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    Update: I am not sure if I should create a new question or simply update this thread with a related parts question. I intend to buy a set (four) new Toyota branded TPM sensors: 42607-33021 OEM 4X 42607-33021 TPMS PMV-107J For Toyota Lexus TIRE PRESSURE MONITOR SENSOR | eBay Although eBay indicates compatibility with my 2010 Prius, I would feel better about this choice if someone could confirm they have had a good experience with Toyota Part Number 42607-33021

    Original Post: I have inherited a 2010 (15 year old) Prius: the TPM dashboard light is lit. I think the battery in the sensors are depleted. I would think that each TPM broadcasts a unique identifier (serial number): this would imply that serial number are programmed into the receiver.

    Two options, where I can either:

    1) reprogram the receiver with new sensor serial numbers
    2) reprogram the transmitters (sensors) with the original serial numbers.

    For option 2): If I can not read the serial numbers written on the existing sensors, then I must somehow query the TPU computer for the sensor serial numbers.

    I have never had a car with TPU. For those of you who have actually replaced your sensors in your garage: which option \ method did you choose and why? I am hoping there is a better third option.

    Update: this YouTube video assume that you have a $300 Auto electronic diagnostic tool and a tire shop.
     
    #1 gatorback, Jul 21, 2025 at 9:54 PM
    Last edited: Jul 21, 2025 at 11:15 PM
  2. Brian1954

    Brian1954 Senior Member

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    The third option is to take the car to a tire dealer and have them install four new TPMS sensors in the tires and then program the new sensor ID numbers into the car's ECU. Call around to a few tire dealers in your area for pricing.

    What I did was buy four aftermarket TPMS sensors on Amazon for $40, and I took them to a tire shop to have them installed for $25 per tire. Then, I used Techstream software to enter the new sensor ID numbers into the car's ECU. My total cost was $40 for the sensors +$100 installation =$140 +tax.
     
    #2 Brian1954, Jul 21, 2025 at 10:15 PM
    Last edited: Jul 21, 2025 at 10:49 PM
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  3. ChapmanF

    ChapmanF Senior Member

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    A full-coverage scan tool (like Toyota Techstream, or third-party ones like the Autel AP200 that's often mentioned here) can retrieve those IDs from the TPMS ECU.

    I've read some posts saying the Autel flakes out trying to program new IDs. (I didn't want to read that, because I have an Autel, and I need to do that.)

    Also, the old transmitters have their ID numbers printed on them (assuming they're originals, and not earlier replaced with the programmable kind), so once you've demounted the tires and taken the old transmitters out, you can just read the numbers.

    Somewhere near you, you probably do have a tire shop. :) And with one of those, you don't even need the $300 tool of your own. They just do the work and usually don't charge you very much.

    The last time I asked my regular tire shop to replace a dead transmitter for me, they charged me $0, and I wasn't fast enough to stop them using their fancy tool to re-register all my IDs. :D

    I had already used Techstream and registered the ID of the new transmitter I gave them to put in. They went ahead and used their fancy tool to re-register all four anyway.
     
    #3 ChapmanF, Jul 21, 2025 at 10:21 PM
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  4. Brian1954

    Brian1954 Senior Member

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    Edit: This is now the third thread that you have created for the TPMS (tire pressue monitoring system) sensors in your 2010 Prius. Please do not create any more threads for this issue. It is much better to have only one thread, so information about your TPMS sensor problem is not spread across three separate threads.
     
    #4 Brian1954, Jul 21, 2025 at 10:48 PM
  5. gatorback

    gatorback New Member

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    Thanks for the experience recap. What is the difficulty level to reprogram the ECU with the new sensor ID numbers via tech stream? I trust this is easier than trying to program sensors? Are these sensors Bluetooth LE?

    I will endeavor to minimize the number of threads.
     
    #5 gatorback, Jul 21, 2025 at 11:21 PM
  6. rjparker

    rjparker Tu Humilde Sirviente

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    You are making something easy and inexpensive hard and pricey.

    You can't reprogram Toyota tpms sensors with new ids. Same for all the low cost sets on Amazon and ebay.

    There is one Autel tpms sensor (MX) that can be reprogrammed to clone existing ids in the car's tpms ecu but they cost $30 each, are not bluetooth and require an expensive Autel tool to do so. You could be in for $400 and still have to dismount the tires, replace the sensors and try to remount without breaking the new sensors. Makes no sense when a tire shop can take your $40 set and install them for $60. You do nothing.
     
    #6 rjparker, Jul 21, 2025 at 11:32 PM
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