[Powdered Toast Man]

I tried doing a search but didn't come up with an answer for this one. I have a 22 Pinnacle Hybrid. On Monday I had a new set of winter tires/rims installed. I bought the recommended TPMS sensors as advised by Costco Tire Centre. (DILL brand I believe). When I drove away from the tire shop the new TPMS sensors seemed to have registered with the vehicle as they showed tire pressures on all 4 wheels.

Yesterday I drove to work with no issues whatsoever. When I left work I started the van and immediately got a warning message on the dash that said "Service Tire Pressure System". The tire light was blinking and eventually turned solid yellow. The tire pressure screen showed "--" at each wheel. I drove around for a while and even made some stops and each time I started up the van the same warnings flashed.

Later on yesterday evening, I started the van and the warnings did not come up and there was nothing in the Messages screen. However the tire pressure at each wheel still shows "--" and it says "Tire pressure unavailable" at the bottom.

I've driven a lot of Chrysler vehicles and done the same wheels swaps and it's always relearned the new sensors within minutes. I've never seen this elaborate of a progression. It's also weird it keeps changing.

Any idea what could be going on here? Is this something I should take back to the tire shop or is this one of those things where they made it so you have to get the dealer to reset the van every time you swap tires?

 

[CANADAHYBRIDGUY]

Incorrect frequency or bad batteries , mopar sensors are no training and just drive and they relearn .

 

[millerbjm]

I would also guess it is the non-oem sensors. When I bought a set of winter wheels/tires at Discount Tire for my Ram they insisted on using OEM TPMS to avoid issues. I would ask Costco to fix it.

 

[thclimer]

This spring we bought a set of winter tires and rims from a Pacifica Forums memeber which were purchased at Tirerack. I installed them about a week ago and the TPMS was able to detect the new ones within the first mile of driving.

 

[freddief73]

Some aftermarket TPMS sensors are "universal" and require programming with a tool that is proprietary to the sensor's manufacturer. Basically, the sensors need to be told what application they're being used in so that they properly function as intended with the corresponding vehicle. This is unrelated to any required vehicle programming (which in the case of the Pacifica and many other Stellantis products is none/self learning).

The shop probably installed some of these universal sensors without programming them. Their parts supplier probably failed to inform them about what I just stated so the tire shop may be completely unaware of the additional programming.

The tire pressure numbers you were seeing as you drove away from the shop either were residual figures provided by the original sensors or the van was still seeing the original TPMS sensors if you loaded up the original wheels and took them home. The numbers disappeared when the van detected the original sensors were no longer present.

If you read your owner's manual, you'll see that what you experienced is actually the expected behavior when a set of wheels and tires are installed without TPMS sensors.

 

[thebluegoat]

I bought these off Amazon for my wife’s 2022 PacHy and they’ve worked flawlessly. I bought some from EBay about 10 years ago for my Ram and are still working no problems. Could just be the frequency isn’t correct.

Amazon.ca