Smart Key won't work even with new battery

My car wouldn't start unless I put the fob in the dash insert. I replaced the battery but it still won't work without being in the dash.

The old cell, less than a year old is 3.1V. The new is 3.3V

What might I be missing?

 

The 12V battery seems fine at 12.6V measured under hood.

 

The light does flash on the fob. I measured 12.6V under the hood between the jumper terminal and chassis.

I guess I'll add that the remote locks work fine, just no proximity functions (button on door, starting without it in the dash).

 

No, I hadn't. I just found the problem. Apparently I accidentally hit the "key" button under the dash recently fumbling for the hood latch at night.

Solved.

Thanks everybody for your input.