I have a 2013 RDX (tech) with about 103k on her. Today went to fill up with gas and it would not start when when fueling was complete. Gave one click and the gauges faded to black. I thought it was a batter - acted like a bad cell. So I installed a new battery. Same thing. One click and no start. Could this be the starter?

 

If a known-good jump box didn't help, and the starter is clicking, you need to verify that the starter is receiving 12 volts of power and then manually apply power to the solenoid—or, as most shops do, simply replace the starter.