2012 PIP > Tire Sensors

Call around for prices on "real" OEM ones.
Cheap Chinese knock-offs often do not work or don't last very long.
Given the age of your vehicle, they ALL probably should be replaced.
The batteries don't last forever.

And replacing them is not DIY for anyone who can't replace their own tires.

OR.....you could just use a tire gauge and ignore the light.

 

I had new sensors put in by the shop that installed my new tires just after Christmas. They sold me their stock brand of sensors. Two of them have already failed, and it’s just March.

 

You're in luck, I just replaced all 4 of TPMS sensors today. If you have all the right tools, it's not too bad. I did it myself because I wanted to learn how to do it. If you don't want to get so involved, I would buy the sensors and then pay a shop to install them. I'm guessing they'd charge ~$15 per tire to install and program.

How much are they to purchase?
The Toyota TPMS part number is 42607-33012. The OEM equivalent is Denso 550-0103. Both are made by Pacific Industrial Co. You can find them for about $30-$40 each.

Left is Toyota, right is Denso.

IMG_0732 by Wooward posted Mar 6, 2021 at 11:01 PM

Are these easy enough to replace for someone who is handy enough yet is not set up in a place to remove a wheel or tire?
I'd say it's doable if you are handy and have the right tools. You'll need an air compressor and a way to break the bead. I used a jack and wood to break the outer bead. There are other techniques on youtube you can check out. You'll need to remove the wheel/tire off the vehicle. This was the first time I've ever broken a tire bead. If you don't mind learning and taking the time, it's a fun experience.

You'll need a TPMS reader to get the ID and also Techstream to program the ECU.

IMG_0728 by Wooward posted Mar 6, 2021 at 10:59 PM

IMG_0731 by Wooward posted Mar 6, 2021 at 10:59 PM

IMG_0734 by Wooward posted Mar 6, 2021 at 10:59 PM

Recommended brand names/links?

Denso 550-0103
I bought 4 Denso 550-0103 off eBay for ~$120. 4pc NEW Denso 550-0103 TPMS Tire Pressure Sensor for 88974915 42607-75010 | eBay
You can also find on Amazon for ~$33 each.

Toyota 42607-33012
Currently 4 for $109.99. This is the same seller I bought the Denso from. If you buy these, you should contact the seller to verify the washer and nut is included. 4pcs NEW TPMS Tire Pressure Sensor FOR Toyota Lexus 42607-33012 | eBay

Any way of know ‘which’ sensor went bad without manually testing each sensor?
I have an Autel TS508 that I used to scan each tire and find out which is bad. Without a TPMS reader, I don't know how you'll be able to determine exactly which TPMS is bad.

IMG_0695 by Wooward posted Mar 6, 2021 at 10:59 PM

 

They are actually nice enough to print the transmitter ID on the sensor.

That is the most interesting way of breaking the bead I have seen in a while. Back in the 80’s, my dad used to drive another car over the edge of a bead to unseat it. LoL

 

The IDs on the Toyota ones I pulled out matched the ID on the sensor. However, the IDs on the Denso I read out, did not match the ID that was printed on them... Not sure why they didn't match.

 

What US State are you in? Only some will fail you.

 

Yes.
Might want to double check that "any light" theory.

 

Only SOME have mandatory inspections......very few, in fact.
And I am a bit skeptical that a tire pressure monitor would really cause a failure.......since that is not required equipment.