TPS Sensors

So I when I purchased my winter rims and tires I chose not to install tire pressure sensors they would have cost me an extra $200, the guy at the tire shop said I would get a light on the dash showing a problem but that would be it no other issues. So I put my winter tires on back on Oct. 8 and no light on the dash came on until today Nov. 24. Anyone have any idea why it took my car over a month to realize it had no TPS sensors??

I’m not sure but mine was the same the first time- but after switch back to summers it functioned properly so no malfunctioning sensors on car


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I remember that they were kind of slow to switch back and forth. Nothing unusual.

Are the summer tires stored where the car is parked? Maybe the car is picking up the sensors. Just a thought.