2005 Toyota matrix what does the yellow symbol next to the gas gauge mean it looks like an exclamation mark surrounded by an oval shaped U with a squiggly bottom?

tHIS IS A TIRE MONITOR SENSOR. Check your tire pressure in all tires and than reset the system in the glove box, there is a button in there. These symbols are in your manual, hopefully also in your glove box. Hope this helps, laurine at Johnstons Toyota in New Hampton NY.

You either have a low tire or bad sensors. Toyota sensors have a problem where if the tires are under 35psi the light eventually comes on, even if their recommended pressure is 30. The spares on the suvs may also have a sensor.