How 2 turn off the the reverse lights sensor once you replaced the bulb? on 2000 Toyota Solara

The red light sensor on the dash board indicating your back up light are not working is still on. I replace the bulb, and now the back up light work but the sensor is still on. I notice it would be one then off, then a neighbor told me my back up lights on the passenger side did not work, so i had it replace.
Now the dash sensor stays on all the time now. Both back up lights work now.

Asked by for the 2000 Toyota Solara