Way to reset codes in 2015 Highlander?

I have a recently purchased 2015 Highlander with the V6 engine. The CEL came on, and the dealership said they think it was the gas cap that caused it. They reset the code. Two days later its back on, and I recently filled up again, cleaned the gasket area on both the tank nozzle and the cap, put it on with "one click" as it says on the cap itself, and of course the CEL is still there.

Is there a way through some sequences of ignition and pushing buttons to reset the light yourself? With a Pathfinder I had, you could accomplish that through some ACC mode and accelerator pedal sequences. Thought I would at least ask.

Thanks in advance.
Mike

Remove the ECM fuse and replace.