TPMS will not reset

Did the tire dealer then have the Toyota dealer synchronize the replacement TPMS unit to the computer?

Didn't think so.

Take it back to the tire dealer, and have him contact the Toyota dealer about what needs to be done next. I think that the Toyota dealer needs a serial number off of the replacement TPMS to configure the computer for the new one. It might need all four.

I suspect the computer is noticing that there are only 3 TPMS units checking in (it doesn't know about the 4th one yet) and complaining about that.

Good luck with the tire shop (who will lose all their profit and then some by paying the Toyota dealer to fix your car).

 

kohnen is probably correct. This same nonsense happend to me with all 4 tires. Les Schwab Tires had to remove all four wheels and tires, record the TPMS electronic serial numbers, reinstall them all. Then the Toyota dealer had to enter them in the ECM. Now it all works fine.

Thankfully in my case, both the Toyota dealership and Les Schwab felt they should have been more diligent in the first place and went easy on my wallet.

I won't even get into the angst load I had to bear and the wasted time.

IMO, Toyota could solve this be affixing a bright red tag to new TPMS's with the TPMS ESN on it or, if that's too much trouble, a warning urging the owner to record the number BEFORE installing the unit.

 

i wonder if you really need the toyota dealer to enter tpms serial numbes into the ECM (toyota scantool or toyota toughbook required)??

tpms is not like car keys i think they have to actually share information with third party manufacturers. i bet
in the future more and more tire stores will be able to program the car with the serial numbers of the tire sensors

for example, bartec a manufacturer of tpms equipment sells a box that can program the entire range of toyota vehicles and not just the prius.

i do not think a tire shop even needs to dismount the tire to get the serial number either. you just walk up to the
tire with a handheld device, put the antenna on the tire next to the valve stem (as the wireless signal will not penetrate the rims)
and it just gives you the serial number

sounds to me like tire shops are still paying catch up to the 2007 ntsha ruling

various manufacturers of third party tpms tools even reccomend that the tire store is supposed to walk you around your car
and to verify that all the sensors are working, so they are not made responsible by bogus claims of sensor damages.

curiously 10 % of cars on the road require the use of a OEM scantool or equivelent scan tool to register the tpms serial numbers,
and that 10 % seems to be all toyotas !

 

well lets say they all don't automatically reset, i do not think auto reset is a good term. a better way to explain it is most cars self reset. they will reset the tpms by themselves, but you have to do a specific sequence, similar to turning off the prius back up sensor if you know what i mean

the other auto setting / self setting cars require the use of a magnet that you put around the valve stem to get the sensors to go

and finally theirs Toyota's required use of thier oem scantool (or equivalent third party device)

although i don't have the specific references, i think i heard the federal goverment gave toyota a slap on the wrist for making dealerships use thier scantool, and why their is now third party manufacturers of scantools for setting tpms stems on toyota vehicles.

now if a third party manufacturer can do the rest of the dealer scan tools, that be cool

 

Clarification please. Can you get a psi reading on MFD or SGII, or do you just get a warning from the ECU if the psi in a tire changes within a predetermined range?

 

psi reading on mfd NO
psi reading on SGII unknown

you get a warning light when the psi has dropped 25% (i think)

 

I just wanna follow-up on this same scenario on my 2007 prius. It was working fine and I changed my tires and wheels last winter with my backup set. after a few months going spring, I installed the old wheel and tire set and it wont reset anymore.
There was no tire removal at all. it was a complete set of 2.
any ideas?
Thanks,

 

You need a tool that can wirelessly "ping" each TPMS sensor and listen for a response to see if it still works. Typical life span for the sensor battery is 8-10 years, so one or more of yours might be bad. May need to have them tested at a tire shop or repair facility.
I don't know exactly what the reset button can accomplish as I just use a scan tool to manually enter each sensor's ID code if needed. I also sure that the car responds to each sensor (displays pressure and temperature on the scanner).

Posted via the PriusChat mobile app.

 

ANY vehicle that does not show you the individual tire pressures does not NEED to be "reset" unless you want to change your "normal" pressures or a sensor is replaced.

Pretty sure that NONE of them will automatically "find" which wheel is on which axle or automatically "find" a new sensor. Well, none in my price range anyway.

 

Not 100% correct for all "idiot light" systems. If for example your car has different pressure specs front to rear and you rotate tires, then you need to retrain the sensors after adjusting pressures in order for the system to monitor correctly.

Yes, there are a few cars that will "auto learn" new sensors, or positions and such, but the gen 2 ain't one of 'em. . Most need a scantool to enter a learning mode then you ping each sensor in order with a TPMS tool. Toyota and Hyundai are among those that require "manual" entry of sensor IDs.

Posted via the PriusChat mobile app.

 

Okay. so in order for me to do it "the right way" since I bought the car used last 35k miles (presently 129k miles) . I'm better off replacing all 4 tpms from the dealer and the tpms tool. Is this correct? Now where do I get this tool and what kind is it?
Thanks,
Joe

 

I end up going to Costco and replaced all 4 TPMS. They charged me 235.00 parts and labor plus I had my tires rotated and balanced free since I bought my tire with the 2 years ago. It got done in 1-1/2 hours great!