Wow same same message appeared on my leased 2022 Tucson Limited yesterday 06/17/2022. The vehicle ony has 1088 miles and was leased on April 16, 2022. I did notice when coming from the grocery store on Friday, June 16th that immediately after starting the car made a grinding whistling noise taht stopped when I put the car in drive. Then after driving a few miles on yesterday after the "possible condition with engine Control System has been detected". Check Engine light is on" appeared I was pulling away from the light and although the wheels kept spinning there was grinding sound. I spoke with my salesman and he said to bring it it on this coming Monday. Oh no not me... I took it in for servicing at first light this morning. Turned the car off from 7 am to opening 7:30.When the service door opened and I restarted the car Check Engine light was off also the powertrain message was gone. I explained the situaton to the service advisor and was told they had 90 cars with appointments and they could not get me today; leave the car or come back Monday no one here today has the knowledge to work on the problem. Nope Not Me... I explained that I was not comfortable driving the car. I would leave the car but needed a loaner. He said no loaner was available. My reply... sure you have a loaner, there are plenty of cars here...loan me one of those Genesis SUVs. He told me those not a loaner... Bring the car back Monday. I stuck to my guns to not leaving with this car, not walking home, not calling anyone for pick up. I guess you from this point there was a 60 second stare down, then I spoke these words This is not my car, its you guys car, I am just leasing it. At that point he said he speak to manager and 5 minutes later wah la ...they had a loaner to give me. Now here is where it gets slimey... he presented loaner paperwork and the service request paperwork. I guess he did not think I would read it. His service request read " customer said check engine light came on and is not on at time of service request" is all that was there. No mention of the "possible condition with engine Control System has been detected". I whipped out my phone and and wrote the reference number, time, date and details of the message on the request. He kinda looked like she sahe has some nerve but he also told me that a lot of times the service message is wrong. Uh huh yeah, sure it is. Like many of you I have bought or leased a few new cars over the years and never has check engine light come on so soon if at all. This is beyond unbelievable. What he didn't know is that I had called Hyundai yesterday and had the warning message put on my file and had them email the acknowledgement of the receiving the complaint to my personal email. The loaner is substandard to what I am driving but I will deal with that issue when I call corporate early Monday. Since I am not buying the vehicle I am going to request a refund of deposit and a ride to Lincoln, Volvo or Acura to lease from them. I am also requesting a face to face with the owner of the dealership or I may wait to see what kind of BS they try to sell me regarding the repair. But they have to be mindful that it their car, NOT MINE. I wish everyone experiencing this problem good luck with the resolve. But in this case ....They may have to lemon their own car