I just had new wheels installed (picture below) and was told that everything was all right but on the drive home the TPMS showed Rear 33-psi, Left front 35-psi and R front 36-psi. These values never changed for the trip home about 30 miles. So I checked the pressure with a gauge and the were all 39 to 40 psi. I let out some pressure and put them all at 32-psi. I the drove about 10 miles and nothing changed on the TPMS So i deflated to 25-psi drove another 10 miles and still no changes to the TPMS. I then reset pressure to 32- psi and drove another 10 miles and still no changes to TPMS. So any ideas on what to do next??

 

just a guess but they may have plugged the small air holes on the sensors with tire mounting lubricant, which is nothing more than a thick liquid soap....you have to go back and have them remounted to correct this, as the soap dries out from heat forming a solid plug

 

Did you "Re-learn" the TPMS sensors?
1. Turn the ignition to ON.
2. Press the RESET button in order to clear any IPC display warning messages.
3. Press and release the OPTIONS button on the DIC to scroll through the display options until the IPC display is blank.
4. Press and hold the DIC RESET button for 3 seconds.
Notice: Refer to Body Control Module (BCM) Programming/RPO Configuration in Cautions and Notices.
5. Press the OPTIONS button again until the TIRE TRAINING message appears.
6. Press the RESET button until the IPC LEARN L FRONT TIRE message appears in order to begin
the programming sequence.
7. Install the J 41760 Tire Pressure Programming Tool over the left front valve stem.
8. The horn will sound, indicating the left front TPM sensor is programmed.
9. When the horn sounds, proceed to program the next TPM sensor in the following order as directed
by the IPC messages:
- LEARN R FRONT TIRE
- LEARN R REAR TIRE
- LEARN L REAR TIRE
Programming Cancellation
1. The programming mode will be cancelled if any of the following conditions are met: - The program mode is exited through the DIC.
- The ignition is turned to OFF.
- All four sensors have been programmed.
- The TPM system has been in the program mode for longer than 2 minutes and no sensors
have been learned.
2. If the program mode is cancelled with less than four codes stored, the receiver will only accept the codes programmed up to that point.

 

I think all that procedure does is tell the computer which TPM is on which wheel. I agree that the sensors have been compromised somehow. They should adjust (automaticaly) within minutes of driving down the street. If you refill a tire the TPM will take a few minutes to re adjust. I run nitrogen in my tires, they stay at a more stable pressure using nitro.

 

You need a magnet to reset the sensors while it is learning mode. Most tire shops have the magnet, so you may want to have the tech go to each wheel and zap it while you are running the procedure listed above.

 

In step 7, a strong magnet also works in place of special tool.
When I replaced TPM's it was a few days of driving before they could be programmed. No one seems to have a good explaination for that.

 

I do not think this is a re-learn issue. That would be indicated by the TPMS not indicating the correct wheel position regardless of pressure. This looks like plugged sensing holes.

 

When mine misbehaved after installation of the PS2 ZPs, one was just blank. So they zapped them while I walked through the procedure. But I don't recall the horn beeping.

 

Maybe the others will see the light????