TPMS in SR that doesnt have it natively

Hey guys, this is my first post on this forum. I just recently bought my dream truck a 2021 tacoma 4x4, but the only option was an SR. For the 99% of things I want out of this truck, I am perfectly fine with an SR; however, one of the few things that bugs me is the lack of TPMS on the console.

I see all the TRDs and SR5s that have the active TPMS that show the pressure on the screen while my SR has a blank screen where its supposed to go.

Im going to be installing aftermarket wheels and tires soon, and along with those some aftermarket valves for airing down which come with a port for TPMS.

My question is, can I grab some TPMS off of Amazon for my truck and have a tire shop code them to my truck in a way that they show up on my dash? How can I install the program that shows the pressure onto my dashboard?

Thanks in advance.

 

I don’t believe you can program the ECU to add the TPMS screen, however I sub’d to this because if it is possible, then I want the pitch/roll screen from the Off Road lol

Edit: Looking into pitch/roll I found this comment (from a user who posted 4 times in 5 years and hasn’t signed on in 2) claiming to have swapped instrument clusters and gained pitch/roll screen on his non-Off Road. If that’s true it might be possible for TPMS as well?

 

SR won't show individual psi readouts.

https://www.tacomaworld.com/threads/does-the-sr-have-tpms.526382/page-2#post-23815524

The last post someone claims to use an app on their phone called "tire assistant" in conjunction with a bluetooth obd reader.

https://www.tacomaworld.com/threads/does-the-sr-have-tpms.526382/page-2#post-23818067

I wonder if you upgraded the radio to something aftermarket if it would readout on the screen?

 

Your easiest solution:

$10 Milton S-921 Pencil Tire Pressure Gauge, Passenger Car, With Built-in Deflator Valve, Durable Plated Brass, Pressure Measured In PSI & kPa

https://www.amazon.com/Milton-S-921...efix=tire+pressure+gauge,aps,222&sr=8-17&th=1

 

TPMS is to warn you of a sudden tire deflation while driving. If tire pressure falls below a certain point, you'll get a warning light in your truck. There is no need to be able to see the exact tire pressure from the drivers seat. I'm a believer in TPMS and strongly advise people to keep the system working. The sensors last 7-10 years typically and it costs about the same as a tank of gas to buy new sensors every 7-10 years so it's not a big deal.

I've started replacing my sensors with every other set of tires and before they go bad. Works out to about every 7-8 years. There is no cost to install new sensors when buying new tires so it comes out cheaper to just replace them early. FWIW I've had good luck with sensors bought from Amazon. I've replaced 4 sets with them. Cost was about $40-$60 for a set of 4.

Twice in the last 20 years I've hit unseen road debris that poked a sizeable hole in a tire. Both times the warning light came on and gave me time to get onto the shoulder, off the road and stopped before the tire went completely flat. It did its job. If I want to know the exact tire pressure, I have an air gauge for that.

 

Can get a standalone system like this. SR should have plenty of blank switch spots:

$85 Tire Pressure Sensor, Car TPMS Tyre Pressure Monitor System with 4 Internal Sensors for

https://www.amazon.com/Aramox-Pressure-Monitor-Internal-Sensors/dp/B08FCHXSW1/



Bigger display:

$80 Tire Pressure Sensor, Car TPMS Tyre Pressure Monitoring System LCD Cigarette Lighter USB 4 Internal Sensor, Black

https://www.amazon.com/Pressure-Monitoring-Cigarette-Lighter-Internal/dp/B0888LM1GB/

If you go with an aftermarket Daisaita stereo, there's an kit available to integrate the reading into the stereo display:

$80 dasaita USB Tire Pressure Monitoring System, with 4 Internal Sensors for Android Head Unit, Car Tire Diagnostic Tool Support Bar and PSI Suit, APP Real-time Tire Pressure Monitor System (0-116 PSI)

https://www.amazon.com/dasaita-Pressure-Monitoring-Diagnostic-Real-time/dp/B0DNMRSQ92/

 

following the above links, i became aware of sensors that just go on the end of the stem, externally, with a similar display unit...about 1/2 the price too. if you are not going to be integrated into the dashboard, this might be more convenient than having to deal with internal sensors. i have no experience with them but may be worth checking out. i noticed pretty good ratings for some of them. Beware the above links have only a few user ratings. likely phony seller plants. units with many positive ratings is important. lots of crap on Amazon.

 

Put an SR5 instrument cluster in the truck.
or
The toyota app shows the pressures.

 

not really.

it seems half the "positive" reviews anymore on Amazon are either gamed from a repurposed page from an entirely different product, or 'vine product tester" reviews that begin and end with "i have no idea what it is, but it showed up free, so 5 stars!".

most of what's on amazon now was available first on temu or alibaba, or aliexpress. the important part is to keep your expectations low. a $100 aftermarket TPMS system is not going to have the same readout resolution, or device polling as a $5,000 oem system.

 

This is my favorite (I use it for my trailer). It will work well on your truck- solar powered too and can be programmed with an alarm that gives you selectable pressure settings for a low pressure warning.

$160 GUTA RV Tire Pressure Monitoring System - 4 External Sensors (0-188 PSI) RV TPMS, Solar Charging, 6 Alarm Modes, High-end Backlight LCD Display, Automatic Sleep Mode

https://www.amazon.com/dp/B086V2T1JJ

 

don't you have to pay for the Toyota app? after my trial was out they said i had to pay for it, now i have a scan gauge that i can see tire pressure on.

 

it seems you have more experience with the Amazon chicanery than i do but we are headed in the same direction.
someone has to pay for jeffie's wedding. so far, i have had mostly good experience with returns though i have been lied to by cust svc agents just trying to close a case. gotta keep on them and so far they eventually do the right thing. ebay improved its cust svc to better than amazon years ago (just my experience) but there is a whole other set of issues with them. have not used them since pandemic when prices/shipping became non competitive.

 

it may be a paid thing, i don't know. I used it a few times after I got my truck and ended up signing out and couldn't get logged back in.