Warm weather is here and guess we'll hear more problems with no a/c at idle, delayed start, etc.
Replace electronic control valve at the back of the compressor and you'll be fine. The part is @$30 but the system needs to be discharged, replace part, evacuate, charge 19.4 oz refrigerant
People we know from the AA ball park told me after the fact, their 2013 SXL had the problem, took it to he stealership and they replaced the compressor, fixed the problem but cost them $1150.
Years ago mine would take sometimes 10minutes or even longer to get started, but fine after that until one day we went shopping, a couple of stops, great a/c, then I waited for the wife at Walmart......
When we left , no a/c, and nothing on the way home on a humid 95 degree day. The ultimatem came down, fix the a/c or that's the last time I'm riding in the car as we'll take mine. Next day installed a used unit from a Sonata with 23k miles, been fine ever since.
Only reason I installed a used compressor and didn't replace just the valve, was at 115k miles it was noisy, so killed 2 birds with 1 stone, no more noise and cold air.
Thought I'd add a reply to KF, no service needed as it's a closed unit, so if a leak, problem with system. I'll need to find charts in the garage that will give approximate vent temp at a specific ambient temp, but off the top of my head not certain.