Overheat A/C Off message?

The vehicle listed above is a 2013 not 2015.

Day 1 - wife states A/C button is blinking and won't turn on. (5 or 6 times for the blink).

Day 2 - Same issue with blinking. Outside temp is roughly 75 F. Then when she is driving, she notices an odd smell. Engine overheat message A/C off and warning ding comes on. Temperature gauge in car reading 260.

I have her park and shut vehicle off. She says the engine fan continues to run.

She notices a small puddle under the car.

It turns out it is the coolant.

When I opened the hood, I did not immediately see anything. Coolant reservoir had coolant. I attempted to drive for about a mile and got the same warning. So, I parked and had it towed the next morning.

When I got home, I noticed the heater hose line connecting to the thermostat housing was snapped off (furthest back on the housing).

I thought I solved it. I added about a half-gallon of coolant into the radiator, not the res. It started getting hot again. Message did not go off. Diagnostic reader is matching pretty close to the dash temp gauge.

Turn heat on and can't feel heat, but that line replaced is hot. The radiator hose at the front of the housing is not.