TPMS - Added two new tires and wheels. How to tell Car to read new sensors?

Hello All,

I bought 4 brand new tires and wheels from a 2017 SL that went under a tractor trailer at 1000 miles.

Tires look brand new and wheels as well. I just changed my bald fronts with two of these and now the tire warning came on.

How so I sync the 2 new tires with my car.

I have LEAF spy pro as well if that helps.

Thanks,

UBUYGAS

It's TPMS.

Are you sure you have those ?

In Leaf Spy Pro: Settings -> Service Screen -> Enable.
You should then see a Service Menu.
Select Register Tire Positions.
Follow the instructions.

Not sure LS can do unregistered sensors. May need to take into the dealer or tire shop for that.

Interesting question, but using the original TPMS might be the simpler solution

I have not yet tried--according to other threads, new sensors can be registered by following the procedure in the service screen of LEAF Spy Pro. My experience after tire rotation is that it takes more driving distance at speeds above 25 mi/hr than I expect to complete the registration process so have patience.

UBUYGAS said:

Hello All,

I bought 4 brand new tires and wheels from a 2017 SL that went under a tractor trailer at 1000 miles.

Tires look brand new and wheels as well. I just changed my bald fronts with two of these and now the tire warning came on.

How so I sync the 2 new tires with my car.

I have LEAF spy pro as well if that helps.

Thanks,

UBUYGAS

Click to expand...

Well the process would be to go to settings and enable maintenance screen which is not on by default. This gives you 5 dots over the standard 4. Then register TPMS sensors. They will only read when moving so after registering, you will need to drive a few blocks going at least 20+ mph

DaveinOlyWA said:

UBUYGAS said:

Hello All,

I bought 4 brand new tires and wheels from a 2017 SL that went under a tractor trailer at 1000 miles.

Tires look brand new and wheels as well. I just changed my bald fronts with two of these and now the tire warning came on.

How so I sync the 2 new tires with my car.

I have LEAF spy pro as well if that helps.

Thanks,

UBUYGAS

Click to expand...

Well the process would be to go to settings and enable maintenance screen which is not on by default. This gives you 5 dots over the standard 4. Then register TPMS sensors. They will only read when moving so after registering, you will need to drive a few blocks going at least 20+ mph

Click to expand...

Settings in the car or LS ?

Most all vehicles don't require any external device to force the TPMS ECU to "learn" new sensors or their new positions if the tires
are rotated. That assumes that all the sensors are OK. Remenber, presently TPMS devices have internal batteries which only last
5-8 years. One always needs to use an external tester to verify whether all the sensors can transmit when "new" sensors are
installed or if having a problem.

Thanks All for your replies, Been crazy busy and no time to do it.

As some have said, you can do it with LEAFspy Pro under the hidden menu BUT the procedure requires that you fill the four tires to different levels. 28, 30, 32, 34 and start the search and drive for 10 minutes above 25MPH. maybe tomorrow morning I can try.

Sal

UBUYGAS said:

Thanks All for your replies, Been crazy busy and no time to do it.

As some have said, you can do it with LEAFspy Pro under the hidden menu BUT the procedure requires that you fill the four tires to different levels. 28, 30, 32, 34 and start the search and drive for 10 minutes above 25MPH. maybe tomorrow morning I can try.

Sal

Click to expand...

Make sure you make numerous left/right turns while driving.

UBUYGAS said:

Thanks All for your replies, Been crazy busy and no time to do it.

As some have said, you can do it with LEAFspy Pro under the hidden menu BUT the procedure requires that you fill the four tires to different levels. 28, 30, 32, 34 and start the search and drive for 10 minutes above 25MPH. maybe tomorrow morning I can try.

Sal

Click to expand...

You are describing the manual reset method and that will not address unregistered sensors

SageBrush said:

DaveinOlyWA said:

UBUYGAS said:

Hello All,

I bought 4 brand new tires and wheels from a 2017 SL that went under a tractor trailer at 1000 miles.

Tires look brand new and wheels as well. I just changed my bald fronts with two of these and now the tire warning came on.

How so I sync the 2 new tires with my car.

I have LEAF spy pro as well if that helps.

Thanks,

UBUYGAS

Click to expand...

Well the process would be to go to settings and enable maintenance screen which is not on by default. This gives you 5 dots over the standard 4. Then register TPMS sensors. They will only read when moving so after registering, you will need to drive a few blocks going at least 20+ mph

Click to expand...

Settings in the car or LS ?

Click to expand...

I don't know of a car that can register new sensors...

DaveinOlyWA said:

I don't know of a car that can register new sensors...

Click to expand...

Apparently the Tesla Model 3 can self-register new sensors, but it may require a specific model #
https://teslamotorsclub.com/tmc/threads/tpms-for-2017.100279/

SageBrush said:

DaveinOlyWA said:

I don't know of a car that can register new sensors...

Click to expand...

Apparently the Tesla Model 3 can self-register new sensors, but it may require a specific model #.

Click to expand...

Yes, as is the case for most all late model vehicles. Hardly a difficult task, i.e. self-learning, for a well designed algorithm of a TPMS ECU.
Obviously the sensor has to be compatible with the vehicle. It's a standard off-the-shelf system available from many automotive subsystem
suppliers.

lorenfb said:

Obviously the sensor has to be compatible with the vehicle.

Click to expand...

How is that determined other than transmit frequency ?
Are there competing protocols in the market ?

SageBrush said:

lorenfb said:

Obviously the sensor has to be compatible with the vehicle.

Click to expand...

How is that determined other than transmit frequency ?
Are there competing protocols in the market ?

Click to expand...

The TPMS ECU reads the data stored in each sensor, e.g. the tire pressure, the sensor's ID, the battery status, etc.
Each ECU vendor can design its own algorithm for determining the sensor's position. The frequencies are somewhat
standard as are the communications protocols from each sensor's manufacturer.

lorenfb said:

SageBrush said:

lorenfb said:

Obviously the sensor has to be compatible with the vehicle.

Click to expand...

How is that determined other than transmit frequency ?
Are there competing protocols in the market ?

Click to expand...

The TPMS ECU reads the data stored in each sensor, e.g. the tire pressure, the sensor's ID, the battery status, etc.
Each ECU vendor can design its own algorithm for determining the sensor's position. The frequencies are somewhat
standard as are the communications protocols from each sensor's manufacturer.

Click to expand...

Heh. Now where have I heard that before ?

You are leaving me with the impression that I cannot buy a generic TPMS at the right frequency and have much expectation of plug&play compatibility.

SageBrush said:

lorenfb said:

SageBrush said:

How is that determined other than transmit frequency ?
Are there competing protocols in the market ?

Click to expand...

The TPMS ECU reads the data stored in each sensor, e.g. the tire pressure, the sensor's ID, the battery status, etc.
Each ECU vendor can design its own algorithm for determining the sensor's position. The frequencies are somewhat
standard as are the communications protocols from each sensor's manufacturer.

Click to expand...

Heh. Now where have I heard that before ?

You are leaving me with the impression that I cannot buy a generic TPMS at the right frequency and have much expectation of plug&play compatibility.

Click to expand...

Generic sensors or the "universal" type needs to be programmed.

https://www.youtube.com/watch?v=wJdon-rqQEg

DaveinOlyWA said:

Generic sensors or the "universal" type needs to be programmed.

Click to expand...

Then you DON'T buy that type unless you have the tool to program them, right? It's that simple.