I just had new tires and wheels installed on my Tacoma and my tire pressure indicator came on thirty minutes later and has stayed on since. the tire pressure is good. and sensors were supposed to have been installed.

Take it back and have them reset the sensor. Specially if you been driving it for a few days. They normally reset themselves when your pressure is right.

I don't trust them, they put one of my tires on wrong after an alignment last winter and it was extremely dangerous. Take it back and have them look at it again. If it still happens, get a second opinion and get your money back

Take it back and have them fix it

I checked the pressure in all four tires, it was right. I tried to reset per my manual and the light is still on.

If all the pressure's are correct reset the pressure monitor according to the manual...