New LUGS came with TMPS valves, why?

So I'm waiting for all the new items to come in: Nitto Ridge Grappler Tires, Black Rhino Wheels, Lugs.

The Lugs and Wheels just arrived and the Lug set came with TMPS valves. I've got an SR5 with no TMPS... so are these even used when they go to install the tires, or no?

I'm looking at getting an aftermarket TMPS to add USB to the T9 radio... and they have External sensors (which I think look like ass as their the tire pressure caps and look huge with FL, FR, RL, RR written on them) and the Internal ones that replace the inside of the valve. But every time I rotate the tires I'd have to remove the internal valve and place it in the new tire for the TMPS to read the correct tire, correct? Or will those new TPMS valves that came with the Lugs work better/easier with the aftermarket internal sensor system?

Thanks all!

 

TPMS - Tire Pressure Monitoring System

When I've ever seen a "TPMS Valve," it's a regular looking tire inflation valve-stem attached to a block or something behind it that reads pressure. The valve and actual sensor are attached and the unit is not serviceable, but replaceable.

TPMS sensors are usually not very cheap, so I'm amazed they just "threw them in."

What year SR5? I'm pretty sure a TPMS is federally mandated on all cars built after 2007 or so. That said, some TPMS use actual sensors in the wheels, while some systems simply calculate rolling differences between the wheels to try to find an under-inflated tire... in other words there are no sensors.

Typical TPMS are smart enough to know where each sensor is. When I rotate my tires, my (OE) system is able to find the sensors, pin-point their location, and appropriately display the info without me guessing at where each tire really is. I'd be amazed if an aftermarket solution didn't do the same.

If you don't have a pressure-reading based TPMS, then no, you will not use those valve stems. Further, I highly doubt those (assuming OE?) TPMS valves will work with any aftermarket system, but I could be wrong there.

 

It's a 2016 SR5 and to my knowledge there is no TMPS on it, at least none that I could find.

The "internal" aftermarket unit I was referring to is this... which while looking at it, I don't think that can get removed and moved to a new tire. But you can see the printing on the stem that it's for a specific tire. So i'm not sure what you do when you have to rotate.

 

So you're saying that if you get a nail in your tire and the pressure drops to 20 PSI, your truck doesn't let you know via a little yellow warning light in the dash/cluster?

 

There is TPMS, if you get a flat or PSI drops beyond a threshold (I think 28psi) it alerts you on the dash.
The OEM ones can be swapped to your new wheels, and most shops will do this regardless if you ask or not. I’d keep those as backup.

 

Ah, gotcha. Never had a flat so never payed attention. Is there any way to "tap in" to the OEM TPMS system to view the pressure via the Torque app or some other way?

 

I know the alpine halo9 head unit displays current tire pressure as well as other powertrain performance monitoring. Other than that you can probably find an OBD2 port connector that will do that as well.

 

My 2020 gives me PSI readings so you could look into retrofit info. The sensors may have changed with that MY change.. I dunno.

 

Nobody has successfully swapped to the newer units, and they’re also a couple grand from Toyota so they’re not very appealing.

 

Looks like there's a thread on using the MX+ obd2 connector and app to read the TPMS. Not sure why it won't work on the Torque app, but it doesn't seem anyone has figured out why.