TPMS Sensors Don't Read With Non OEM Tires?

Jeff M · 2022-07-08T12:15:17-0400

Couldn't even imagine how frustrating this has to be.

invisiblewave · 2022-07-08T12:16:45-0400

houstonT said:
I'm still in disbelief to be honest...I've swapped OEM TPMS sensors, OEM wheels (with R888R on them - not my wheels), OEM TPMS module, refinished my OEM wheels and now the only thing left is the OEM tires. I will have them mounted next week and we will see.
Peter

Did you ever find out where the antennas are located?

tozzy234 · 2022-07-08T12:57:37-0400

rnixon said:
It's not clear if the communication uses the existing TPMS comms, extending the existing protocol, or if it's entirely new. I would be surprised if it's not possible to get sensors that are compatible with the McLaren-side hardware and software.

Its entirely new, however I have seen how the sensors are fitted to the tires and it does appear to be possible to separate them from the tire then clamp them to the barrel of the wheel using aftermarket parts.

tozzy234 · 2022-07-08T13:01:44-0400

invisiblewave said:
Did you ever find out where the antennas are located?

There is only one antenna and its inside the TPMS control unit which is located passenger side under the wipers in the frunk

invisiblewave · 2022-07-08T13:15:47-0400

tozzy234 said:
There is only one antenna and its inside the TPMS control unit which is located passenger side under the wipers in the frunk

That might explain the problem!

invisiblewave · 2022-07-08T13:51:39-0400

tozzy234 said:
There is only one antenna and its inside the TPMS control unit which is located passenger side under the wipers in the frunk

How does it know which wheel is which? Do they have to be programmed to a specific wheel? Is it possible to pair them with the wheels off the car near the frunk??

brads10000 · 2022-07-08T15:03:16-0400

I experienced this same issue on a Porsche with the R888's. I had a huge fight with Porsche over it and in the end reluctantly accepted their explanation. They said R888's had inconsistent belting which was blocking the TPMS signal on some sets and not others. I bought a second set of R888's and brought them to the dealer and watched while they installed one set and the TPMS worked and then changed to other and it wouldn't. I'd purchased them from Tire rack and after fighting with them for a while was finally able to get a refund but it sounds like you are dealing with the same thing.

tozzy234 · 2022-07-08T15:07:31-0400

invisiblewave said:
How does it know which wheel is which? Do they have to be programmed to a specific wheel? Is it possible to pair them with the wheels off the car near the frunk??

It uses the signal strength to determine the location of each wheel. for example the left rear will have the weakest signal strength.

invisiblewave · 2022-07-08T15:11:23-0400

tozzy234 said:
It uses the signal strength to determine the location of each wheel. for example the left rear will have the weakest signal strength.

No wonder it's so friggin' flaky. I was thinking it might be possible to pair them with the wheels off and nearer the antenna, then refit the wheels once the car has seen them.

houstonT · 2022-07-10T09:51:05-0400

Finally someone with the same problem as me.....maybe it's as you explain....inconsistency with Toyo. Like I mentioned, I even purchased a BRAND NEW TPMS module and that didn't work either LOL. Anyone need a module? Hahaha

Peter

brads10000 said:
I experienced this same issue on a Porsche with the R888's. I had a huge fight with Porsche over it and in the end reluctantly accepted their explanation. They said R888's had inconsistent belting which was blocking the TPMS signal on some sets and not others. I bought a second set of R888's and brought them to the dealer and watched while they installed one set and the TPMS worked and then changed to other and it wouldn't. I'd purchased them from Tire rack and after fighting with them for a while was finally able to get a refund but it sounds like you are dealing with the same thing.

invisiblewave · 2022-07-10T10:09:27-0400

houstonT said:
Finally someone with the same problem as me.....maybe it's as you explain....inconsistency with Toyo. Like I mentioned, I even purchased a BRAND NEW TPMS module and that didn't work either LOL. Anyone need a module? Hahaha

Peter

Makes you wonder about the quality control on the Toyos.

Hypurone · 2022-07-10T11:46:27-0400

invisiblewave said:
Makes you wonder about the quality control on the Toyos.

Pretty much everything these days! My new PS4S's caused the car to drift left once installed, had to switch them side to side to alleviate the problem and they took more weight than I would have expected in all my years of undercar work as well.... Had a couple of Bridgestone's that flat out would not balance.... Sheesh! What is the world coming to.... I know, I know, first world problems!!

houstonT · 2022-08-08T16:24:35-0400

CLOSING THE LOOP:

OEM tires on the front, R888R in rear, TPMS doesn't work.
OEM tires on the front and rear, TPMS works.

I'm shocked and can't even begin to explain how this is possible. In speaking to Brooks (Dragtimes), his thought was that maybe the "newer batch" of TPMS sensors are "weaker" or just not as good?

Peter

MTV8 · 2022-08-08T20:49:49-0400

The Toyos always seem to weigh much more than other brands in the same sizes. The additional steel in the belts seems most likely to have caused the TPMS issue.

houstonT · 2022-08-09T16:59:02-0400

I did learn that the R888R is a 3-ply steel belted tire whereas the older R888 and gen1 R888R's were to 2-ply. Maybe that small difference in belting makes the difference.
Peter

Excelsior · 2022-08-10T16:19:24-0400

houstonT said:
I did learn that the R888R is a 3-ply steel belted tire whereas the older R888 and gen1 R888R's were to 2-ply. Maybe that small difference in belting makes the difference.
Peter

All I know is I had R888R's on all four corners of my 570S and 600LT and did not have an issue. My friend had a 720S with the same tires and also did not have an issue. Sometimes when mounting new tires it takes 15 to 20 miles for it to calibrate and pick up the sensors, I wonder if you just didn't wait long enough. I've had this delay before.

houstonT · 2022-08-10T20:53:26-0400

I've tried it all...waiting 10-20-30 min...driving 40 mph and below...driving 60 and above...driving long...driving short...etc...nothing with the R888R worked.
Peter

Excelsior said:
All I know is I had R888R's on all four corners of my 570S and 600LT and did not have an issue. My friend had a 720S with the same tires and also did not have an issue. Sometimes when mounting new tires it takes 15 to 20 miles for it to calibrate and pick up the sensors, I wonder if you just didn't wait long enough. I've had this delay before.

Tuxiemama · 2022-08-19T01:14:19-0400

Tuxiemama said:
Should NOT be an issue... I've run (previously) R888 on rears and OEM on fronts with no issue and R888R on all 4 wheels with no issue... more likely a gremlin in the techo !

Sorry 675 LT and I think we tried on 650S

EMF Audio (McMedics) · 2023-01-27T17:52:31-0500

I'm experiencing this now, perhaps the same thing with no explainable reason, but I'm using Yokohama AD09's. I haven't gotten them to read at all after 3 driving cycles and an hour of driving. Factory wheels, and I'm sure I can put the other factory wheels with factory TPMS in them and they'll work.

b2finity · 2023-01-28T00:43:26-0500

EMF Audio (McMedics) said:
I'm experiencing this now, perhaps the same thing with no explainable reason, but I'm using Yokohama AD09's. I haven't gotten them to read at all after 3 driving cycles and an hour of driving. Factory wheels, and I'm sure I can put the other factory wheels with factory TPMS in them and they'll work.

yikes, I was considering those tires too. How's the grip on them though? Can they handle the 720s power on the street?

TPMS Sensors Don't Read With Non OEM Tires?

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