why is the Tire Pressure Monitor System keeps coming on. on 2004 Mazda RX-8

It keeps coming on when I'm driving. I took it to Good Year and I replaced all 4 tires, put nitrogen on all 4, got a wheel allignment. I drove it and it still comes on. Any ideas?

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2 answers
They most likely damaged a sensor.
check the tire pressure maybe incorrect, try checking it yourself.