Thread: How does the air pressure switch in the tire???

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Do you really believe they installed 4 NEW sensors??? I do not!

Don't mean to hijack, but on a related note my daughter's GMC Acadia has the sensors and kept signalling that here left rear tire was low. I checked it and aired it up to 40 pounds. She came back later and said she is still getting the message at she only has 25 pounds in the left rear. I checked it again and found it was still at 40. so I checked them all and found her left front was low, 25 pounds. Aired that one up and the message went away. Just wondering how the computer knows which tire is which? She had work done recently and I wonder if they moved the tires around.

Pat

They have to be put in the computer in the right order.
That means if you rotate them they will be out of order.
Kurt