All, I'm a longtime Prius and hybrid owner and I also off road Toyota 4Runners for just as many years. I'm very active in both areas and like to get the most from all my vehicles. Yesterday, I found out the wonderful folks at ScanGauge (Linear Logic) have figured out how to display the individual tire pressures for 4Runners from the OEM TPMS info. They are in the testing phase and were asking for people on a 4Runner forum I frequent to test for free. I immediately thought of the Prius group here and asked if they would be interested in including the hard core crazies (and others) here on PriusChat in their test. James DeLong is the engineer that worked on the Toyota TPMS XGauges and he said YES! First you must own a ScanGuage II. This is still in test mode and there may be bugs. It's a firmware flash with extra TPMS code attached to it. If you have any customized stuff on your ScanGuage II, it will be overwritten when they add the new flash. It works great on the ones I've seen. Here's the deal. The fine people at ScanGauge would like to extend the offer to certain (see who below) Prius ScanGauge II owners to send in their ScanGauge II and get the software installed for free. All you have to do is mail your ScanGauge II to them with some info below and they will flash and send it back to you for free. (Mine only cost $3 to send to them via first class mail with tracking.) Who can do this? The info being transmitted is different among the various vehicles and years among all of the Toyotas. The XGauges for the 4Runner will be different than for the Prius and even different within ranges of years of the Prius. It will matter what year and type your vehicle is so read on carefully. As of today they have working code for any Prius from 2006 - 2015. If you drive one of these and have a ScanGauge II you qualify. Regarding 2016 - 2017 Prius and Prius Primes, Toyota changed the TPMS reporting method so James is working on code for that right now. He has my ScanGauge and I can report how it works on the 2016-2017 if you want to wait for confirmation before sending yours in about a week. Note: During the test phase, this is USA only. If you meet the requirements above and want to send yours in, here's how. You will need . . . 1.address label 2. separate note inside the package 3. ScanGauge II (only, no cable) Mail label: Linear Logic Attn: James DeLong - Toyota Prius Tire Pressure 2222 S. Dobson Road Suite 800 Mesa, AZ 85202 Include a note inside the package with: 1. Attn: James DeLong - Toyota Prius Tire Pressure 2. You full name and return shipping address 3. Specify you want to test the TPMS sensor data for the PRIUS 4. Tell them WHAT year and type of Prius yours is. 5. If like me you will use it between more than one Toyota, specify which ones and years they are. Example, I'm testing a 2017 Prime, 2014 4Runner, and a 2014 Camry Hybrid. Each of these 3 require different XGauges to read each TPMS. You'll get your unit back about 1 week after they receive it. Again, this is a test, so there might be a small problem, but nobody has reported one yet. These guys are good. I'm impressed they're doing this for us. I'm glad I read my 4Runner forum posts yesterday so I could get all of you included. (grin) Other than owning a ScanGauge II, I have no affiliation with Linear Logic. ~~~~~~~~~~~~~~~~~ Here's what you will see after the update. There are 4 XGauges 1-4. To quote James "the XGauges will allow you to view the data for tire ID's 1 - 4. What tires correspond to what ID's may be random. Some people may find Tire ID 1 is reporting data from their right rear tire, while others may find it's their left front tire. That's just an assumption on my part, but I think it's a safe assumption. The TPMS registration process allows you to map any TPMS sensor ID to any Tire ID, thus any tire could be represented by any of the Tire ID's. Ultimately to figure it out you'd just have to air out a tire then check to see which tire ID had a drop in pressure. If you let some air out of your front driver side wheel, and you see the pressure for Tire ID 2 drop, then you'd know Tire ID 2 is your front driver side tire. Once you figure them out you'd be able to then go back and change the XGauge Name to something like FLP (Front Left Pressure) to make it easier to know what a specific tire's pressure is." Obviously this will change when you rotate tires. I know of many here that wanted to go past the idiot light method of a low tire notification. Here's your chance and I hope this helps you.