TPMS - OEM - vs After Market

I'm glad you figured it out. I can't believe the tire store didn't know this right off. When I started reading it took a while to determine this was an old thread. But tires are normally 3-5 PSI lower when cold than after they are driven a while. Personal preference, but I run my tires just a few PSI over the recommendation on the door jamb. Even at that I sometimes get a warning on really cold mornings. It almost never happens in summer.

And I've had good luck with aftermarket sensors. I have sensors I bought from Amazon in 3 vehicles. They have been working perfectly for 3-5 years depending on the vehicle. I can get a 4 pack for $60-$80 there instead of $60 each. Normal life is 7-10 years. If I'm buying new tires anyway and the old sensors are 7 years old or older I just order new sensors and have them installed proactively. I figure they are likely to go bad before that set of tires wears out and there is no extra charge to install them when getting tires mounted.

 

Every shop does this. It's written on the wall. Heat expands pressure.
If you go to Costco, it says on the wall. +4 hot. +4 hot occurs after a mile of driving. Every employee there will tell you this.
If you arrive to an air station hot, intending for a 29psi cold pressure, you would set it to 33 at that time.
If they adjust your pressure (before the self serve machine came out), they add 4 because the car drove there.

Yes that is a good idea. Have seen sensors fail after 10yr. Maybe should do mine next time. So far just did one with $20-30 Amazon when I accidentally broke one. Had Costco program it.
This used to be free, quick, outside. Then I guess the policy changed and the "$1000 machine magically disappears" so now it's $20+ schedule appointment in advance and drop off vehicle for an hour or more

 

Thanks for your reply TacoTuesday1. My door spec on my 2010 TRD says 30 psi which I reset them at. Then increased all tires to 35 psi. So far so good.

Marshall R - I took the truck to my local mechanic who is 1 mile away (didn't drive the truck before that so the tires were cold). He used a tpms sensor programmer and obtained the code numbers for each sensor. He wasn't able to read one 4 year old sensor so he replaced it with a new one. At this point, all sensors are new. He also connected the programmer to the diagnostic plug under the dash to ensure the codes were being read by the trucks computer. Not sure what the PSI for each tire he programmed them at, but the tires were at 32 PSI when I picked it up.

The light was not lit for two weeks afterwards while driving locally. However when I took it on the NJ turnpike traveling a steady 70+ MPH for 30 minutes, the light came on again and stayed on. If the PSI goes up while driving why would the light come on when all 4 tires are fully inflated to 32 PSI at the time? Beats me. Hopefully, resetting using the button under the steering wheel at 30 PSI and then incrasing the pressures to 35 PSI will do the trick.

I will post a follow-up here if the light comes on again. Thanks again for your replies.

 

You might consider getting a service tool like the Autel TPMS diagnostic and service tool. I have an Autel TS508WF that I got in kit form and it has 8 sensors plus 4 extra metal interchangeable valves. I'm sorry to say though, that it's not cheap. I have a 2017 and a 2023 Tacoma and the 2017 is out of warranty so I will be doing a lot of servicing myself on the 2017 and I decided to get it since my TPMS light recently came on.
https://shop.advanceautoparts.com/p...b8d0a3d28359121026bec64b06820669&gclsrc=3p.ds

 

I replaced all 5 of my sensors with Denso OEM units I bought ahead of time and brought to the tire shop, then I used Techstream to program them in.