Reliable source……ah the parts department at the dealer.

 

OEM sensors don't have replaceable battery, they are spot welded

technically you could replace it if you cut open the case and
spot weld a new one in but nearly everyone buys new sensors
since almost no one has tools to reseal a split case and spot weld lithium button cells

as far as what sensors are compatible nearly any dealer has a parts dept web page
and you can look up your compatible PN's

example 2015 rav4 LE

Tire Pressure Monitor Components for 2015 Toyota RAV4 | Sparks Parts

www.sparksparts.com

 

Just take it to a tire shop and they can fix for you. No need to go the dealer. You should get all four replaced. The batteries have about a 10 year service life. If one is dead then the others will die soon after.

 

 

Yikes!! No thanks, good way to loose finger tips digging around down there to retrieve the TPMS. 🫣

 

Well, when it comes to those TPMS batteries in your RAV4, it's important to know that they're usually not replaceable. The sensors are sealed units, so when the battery dies, you typically have to replace the whole sensor. So, first off, make sure you get the right replacement sensors for your RAV4. They're specific to the make, model, and sometimes even the year of your car. Also, keep in mind that if one sensor goes out, the others might follow suit soon. It could be a good idea to replace them all at once, especially if they're all the original ones.

 

Any good tire shop should be able to replace wheel TPMS sensors and set them up to work with the RAV4's system. Shop around for the best deal. So far the OEM sensors on our '11 RAV4 are still functioning. Need to replace sensors reportedly depends upon both age and miles driven.