Originally Posted by
dedwards0323
There is a Forum Member that replaced the original OEM wheel sensors with the Shrader 33500 wheel sensors. He claims that the TPMS warning light comes on when he starts the car but goes out after he drives a few miles. Haven't figured out why a "re-learn" occurs but it's only temporary.
Could this be a tire with air pressure right on the borderline & after the tire heats up, & the tire pressure increases, the warning light goes out. Not convinced this Forum Member has that condition based on his experience & knowledge of this car.
Most likely... As you drive the car the heat in the tire will build up. IF the pressure is at the low threshold it can trip the light back off. Also, a battery in the sensor at its life limit could be just warming up a little and having a slight increase in voltage thereby sending the signal to the TPMS receiver.
The ONLY reason the manual says to do the 'relearn' in a set pattern, IN MY OPINION, is to provide a sequence to its setup. I have seen posts of ppl who have all 4 rim/tire sizes the same (or 18's front & 19's rear OEM), and when they rotate the tires there is no problems with the TPMS working properly.
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