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?

by in Alameda, CA on October 17, 2012
2 answers
ANSWER by on October 22, 2012
check the tire pressure maybe incorrect, try checking it yourself.
ANSWER by on November 02, 2012
They most likely damaged a sensor.