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Grit_dog's avatar
Grit_dog
Navigator
Aug 18, 2021

Stupid TPMS!!

The new GM 1500s must have a lower threshold now! Just rotated the tires on my 2020 1500 Chebbie and set the rears (which are still reading front position and may be the issue but requires a re-learn tool to change) to 32psi cold. Truck is a pavement princess that is mostly driven empty, no load.
My old 2016, I recall didn't trip the low pressure light until > 25psi. I know I could air down for winter driving to under 30psi without getting the light.
At night pressure dropped to 31 psi...BAM, tire light. Up to 34-35psi on the highway, no luck, didn't disappear.
Owners manual, doesn't appear to show the threshold values nor if they're different front to rear.
Oh well, starting to get used to the tire light since the thresholds have been too high on trucks since the whole tpms mandate began.
Just venting...
  • Admin wrote:
    Go back to the tire place, they should have reset the tires to the new position.
    I had the same reset problem but luckily caught it before driving off.

    Admin


    Except I was the tire place in this scenario. Much quicker than taking it in for a rotation.
    And I don’t care personally if I know which one is where. Only 4 to keep track of.
    But I do wonder if they have different thresholds F and R. Probably not on a half ton.
    Not interested in the time to make it a science project to find out either.
  • Groover wrote:
    I have a friend who had her tires rotated at the Chevy dealer who also neglected to reprogram the tire locations. A few weeks later the system told her that she had a flat (which she did) but she couldn't find it because it told it to look at the wrong tire. The dealer must have also over-tightened the lug nuts because we destroyed the factory lug wrench getting nuts off. Or maybe the lug wrench was just a piece of garbage. Or both.

    It seems that my 2016 F150 knows which tire is where because the display follows the tires when I rotate them. And I know that I haven't reset anything.


    Yeah ford and Chrysler are good like that. GMs apparently don’t have the technology yet….
  • Groover wrote:
    It seems that my 2016 F150 knows which tire is where because the display follows the tires when I rotate them. And I know that I haven't reset anything.


    Same on my Ram. Only problem with it is I get the idiot light all winter because I drop my rear tires to around 60. Suffering a quarter inch idiot light and a warning ding at startup isn't the end of the world, though.
  • I have a friend who had her tires rotated at the Chevy dealer who also neglected to reprogram the tire locations. A few weeks later the system told her that she had a flat (which she did) but she couldn't find it because it told it to look at the wrong tire. The dealer must have also over-tightened the lug nuts because we destroyed the factory lug wrench getting nuts off. Or maybe the lug wrench was just a piece of garbage. Or both.

    It seems that my 2016 F150 knows which tire is where because the display follows the tires when I rotate them. And I know that I haven't reset anything.
  • Go back to the tire place, they should have reset the tires to the new position.
    I had the same reset problem but luckily caught it before driving off.

    Admin