Tire system warning symbol comes on when driving

What is your question?

2010 cadillac cts warning tire system flashes and stays on at times. Have a message comes on in instrument panel say tire pressure monitoring system. What causes this? What do I need to do? How much is an estimate? Does checking tire pressure is needed?

What makes this problem better or worse?

once I drive it about 5 miles or more I see the symbol and message

How long has your 2010 Cadillac CTS had this problem?

few weeks